Finding the Fourth Proportional to 1,014.16, 1,398.53 and 748.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,014.16 : 1,398.53 = 748.15 : x
2. Step 2: Convert to fraction form
   1,014.16/1,398.53 = 748.15/x
3. Step 3: Cross multiply
   1,014.16x = 1,398.53 × 748.15
4. Step 4: Simplify right side
   1,014.16x = 1,046,310.22
5. Step 5: Solve for x
   x = 1,046,310.22/1,014.16
6. Step 6: Final answer
   x = 1,031.70