Finding the Fourth Proportional to 1,004.00, 1,385.15 and 625.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,004.00 : 1,385.15 = 625.72 : x
2. Step 2: Convert to fraction form
   1,004.00/1,385.15 = 625.72/x
3. Step 3: Cross multiply
   1,004.00x = 1,385.15 × 625.72
4. Step 4: Simplify right side
   1,004.00x = 866,711.03
5. Step 5: Solve for x
   x = 866,711.03/1,004.00
6. Step 6: Final answer
   x = 863.26