DJIA was 19,864.09 on Jan 31, 2017 (refer to the Excel spreadsheet DJIA_Jan31_2017.xlsx in ASSIGNMENTS on the course web site). What was the divisor value (provide the number with 6 digits after the decimal point)?

Components for Dow Jones Industrial Average
Component Data Date: Jan 31, 2017
NUM	COMPANY NAME	TICKER	USD CLOSE
1	3M Co	MMM	174.82
2	American Express Co	AXP	76.38
3	Apple Inc	AAPL	121.35
4	Boeing Co	BA	163.42
5	Caterpillar Inc	CAT	95.66
6	Chevron Corp	CVX	111.35
7	Cisco Systems Inc	CSCO	30.72
8	The Coca-Cola Co	KO	41.57
9	Walt Disney Co	DIS	110.65
10	E I du Pont de Nemours and Co	DD	75.50
11	Exxon Mobil Corp	XOM	83.89
12	General Electric Co	GE	29.70
13	Goldman Sachs Group Inc	GS	229.32
14	Home Depot Inc	HD	137.58
15	International Business Machines Co...	IBM	174.52
16	Intel Corp	INTC	36.82
17	Johnson & Johnson	JNJ	113.25
18	JPMorgan Chase and Co	JPM	84.63
19	McDonald's Corp	MCD	122.57
20	Merck & Co Inc	MRK	61.99
21	Microsoft Corp	MSFT	64.65
22	Nike Inc	NKE	52.90
23	Pfizer Inc	PFE	31.73
24	Procter & Gamble Co	PG	87.60
25	Travelers Companies Inc	TRV	117.78
26	United Technologies Corp	UTX	109.67
27	UnitedHealth Group Inc	UNH	162.10
28	Verizon Communications Inc	VZ	49.01
29	Visa Inc	V	82.71
30	Wal-Mart Stores Inc	WMT	66.74
			Jan/31/2017
		DJIA	19,864.09