Finding the Fourth Proportional to 1,002.54, 1,503.61 and 632.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002.54 : 1,503.61 = 632.18 : x
2. Step 2: Convert to fraction form
   1,002.54/1,503.61 = 632.18/x
3. Step 3: Cross multiply
   1,002.54x = 1,503.61 × 632.18
4. Step 4: Simplify right side
   1,002.54x = 950,552.17
5. Step 5: Solve for x
   x = 950,552.17/1,002.54
6. Step 6: Final answer
   x = 948.14