Finding the Fourth Proportional to 1,016,564.82, 1,402,870.14 and 557,680.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016,564.82 : 1,402,870.14 = 557,680.32 : x
2. Step 2: Convert to fraction form
   1,016,564.82/1,402,870.14 = 557,680.32/x
3. Step 3: Cross multiply
   1,016,564.82x = 1,402,870.14 × 557,680.32
4. Step 4: Simplify right side
   1,016,564.82x = 782,353,068,593.65
5. Step 5: Solve for x
   x = 782,353,068,593.65/1,016,564.82
6. Step 6: Final answer
   x = 769,604.71