Finding the Fourth Proportional to 1,004.24, 1,385.72 and 562.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,004.24 : 1,385.72 = 562.03 : x
2. Step 2: Convert to fraction form
   1,004.24/1,385.72 = 562.03/x
3. Step 3: Cross multiply
   1,004.24x = 1,385.72 × 562.03
4. Step 4: Simplify right side
   1,004.24x = 778,809.28
5. Step 5: Solve for x
   x = 778,809.28/1,004.24
6. Step 6: Final answer
   x = 775.52