Finding the Fourth Proportional to 1,061,566.17, 1,464,951.12 and 578,139.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061,566.17 : 1,464,951.12 = 578,139.39 : x
2. Step 2: Convert to fraction form
   1,061,566.17/1,464,951.12 = 578,139.39/x
3. Step 3: Cross multiply
   1,061,566.17x = 1,464,951.12 × 578,139.39
4. Step 4: Simplify right side
   1,061,566.17x = 846,945,946,896.62
5. Step 5: Solve for x
   x = 846,945,946,896.62/1,061,566.17
6. Step 6: Final answer
   x = 797,826.81