Finding the Fourth Proportional to 1,377.14, 2,062.17 and 760.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377.14 : 2,062.17 = 760.15 : x
2. Step 2: Convert to fraction form
   1,377.14/2,062.17 = 760.15/x
3. Step 3: Cross multiply
   1,377.14x = 2,062.17 × 760.15
4. Step 4: Simplify right side
   1,377.14x = 1,567,558.53
5. Step 5: Solve for x
   x = 1,567,558.53/1,377.14
6. Step 6: Final answer
   x = 1,138.27