Finding the Fourth Proportional to 1,082.57, 1,493.69 and 634.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,082.57 : 1,493.69 = 634.37 : x
2. Step 2: Convert to fraction form
   1,082.57/1,493.69 = 634.37/x
3. Step 3: Cross multiply
   1,082.57x = 1,493.69 × 634.37
4. Step 4: Simplify right side
   1,082.57x = 947,541.49
5. Step 5: Solve for x
   x = 947,541.49/1,082.57
6. Step 6: Final answer
   x = 875.27