Finding the Fourth Proportional to 1,025.48, 1,415.25 and 632.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,025.48 : 1,415.25 = 632.54 : x
2. Step 2: Convert to fraction form
   1,025.48/1,415.25 = 632.54/x
3. Step 3: Cross multiply
   1,025.48x = 1,415.25 × 632.54
4. Step 4: Simplify right side
   1,025.48x = 895,205.77
5. Step 5: Solve for x
   x = 895,205.77/1,025.48
6. Step 6: Final answer
   x = 872.96