Finding the Fourth Proportional to 1,069,686.89, 1,605,049.31 and 470,570.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069,686.89 : 1,605,049.31 = 470,570.19 : x
2. Step 2: Convert to fraction form
   1,069,686.89/1,605,049.31 = 470,570.19/x
3. Step 3: Cross multiply
   1,069,686.89x = 1,605,049.31 × 470,570.19
4. Step 4: Simplify right side
   1,069,686.89x = 755,288,365,961.43
5. Step 5: Solve for x
   x = 755,288,365,961.43/1,069,686.89
6. Step 6: Final answer
   x = 706,083.60