Finding the Fourth Proportional to 1,004.29, 1,385.85 and 562.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,004.29 : 1,385.85 = 562.15 : x
2. Step 2: Convert to fraction form
   1,004.29/1,385.85 = 562.15/x
3. Step 3: Cross multiply
   1,004.29x = 1,385.85 × 562.15
4. Step 4: Simplify right side
   1,004.29x = 779,055.58
5. Step 5: Solve for x
   x = 779,055.58/1,004.29
6. Step 6: Final answer
   x = 775.73