Finding the Fourth Proportional to 1,501.31, 2,248.95 and 748.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.31 : 2,248.95 = 748.56 : x
2. Step 2: Convert to fraction form
   1,501.31/2,248.95 = 748.56/x
3. Step 3: Cross multiply
   1,501.31x = 2,248.95 × 748.56
4. Step 4: Simplify right side
   1,501.31x = 1,683,468.39
5. Step 5: Solve for x
   x = 1,683,468.39/1,501.31
6. Step 6: Final answer
   x = 1,121.33