Finding the Fourth Proportional to 1,737.09, 2,606.76 and 915.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,737.09 : 2,606.76 = 915.12 : x
2. Step 2: Convert to fraction form
   1,737.09/2,606.76 = 915.12/x
3. Step 3: Cross multiply
   1,737.09x = 2,606.76 × 915.12
4. Step 4: Simplify right side
   1,737.09x = 2,385,498.21
5. Step 5: Solve for x
   x = 2,385,498.21/1,737.09
6. Step 6: Final answer
   x = 1,373.27