Finding the Fourth Proportional to 1,358.05, 1,874.04 and 915.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,358.05 : 1,874.04 = 915.25 : x
2. Step 2: Convert to fraction form
   1,358.05/1,874.04 = 915.25/x
3. Step 3: Cross multiply
   1,358.05x = 1,874.04 × 915.25
4. Step 4: Simplify right side
   1,358.05x = 1,715,215.11
5. Step 5: Solve for x
   x = 1,715,215.11/1,358.05
6. Step 6: Final answer
   x = 1,263.00