Finding the Fourth Proportional to 1,358.39, 1,874.38 and 760.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,358.39 : 1,874.38 = 760.74 : x
2. Step 2: Convert to fraction form
   1,358.39/1,874.38 = 760.74/x
3. Step 3: Cross multiply
   1,358.39x = 1,874.38 × 760.74
4. Step 4: Simplify right side
   1,358.39x = 1,425,912.04
5. Step 5: Solve for x
   x = 1,425,912.04/1,358.39
6. Step 6: Final answer
   x = 1,049.71