Finding the Fourth Proportional to 1,499.76, 2,250.45 and 915.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.76 : 2,250.45 = 915.48 : x
2. Step 2: Convert to fraction form
   1,499.76/2,250.45 = 915.48/x
3. Step 3: Cross multiply
   1,499.76x = 2,250.45 × 915.48
4. Step 4: Simplify right side
   1,499.76x = 2,060,241.97
5. Step 5: Solve for x
   x = 2,060,241.97/1,499.76
6. Step 6: Final answer
   x = 1,373.71