Finding the Fourth Proportional to 1,614.22, 2,227.56 and 915.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,614.22 : 2,227.56 = 915.59 : x
2. Step 2: Convert to fraction form
   1,614.22/2,227.56 = 915.59/x
3. Step 3: Cross multiply
   1,614.22x = 2,227.56 × 915.59
4. Step 4: Simplify right side
   1,614.22x = 2,039,531.66
5. Step 5: Solve for x
   x = 2,039,531.66/1,614.22
6. Step 6: Final answer
   x = 1,263.48