Finding the Fourth Proportional to 1,561,753,400.82, 2,155,223,785.69 and 847,288,917.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,561,753,400.82 : 2,155,223,785.69 = 847,288,917.06 : x
2. Step 2: Convert to fraction form
   1,561,753,400.82/2,155,223,785.69 = 847,288,917.06/x
3. Step 3: Cross multiply
   1,561,753,400.82x = 2,155,223,785.69 × 847,288,917.06
4. Step 4: Simplify right side
   1,561,753,400.82x = 1,826,097,227,399,233,536
5. Step 5: Solve for x
   x = 1,826,097,227,399,233,536/1,561,753,400.82
6. Step 6: Final answer
   x = 1,169,260,925.85