Finding the Fourth Proportional to 1,377.27, 1,902.69 and 1,114.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377.27 : 1,902.69 = 1,114.83 : x
2. Step 2: Convert to fraction form
   1,377.27/1,902.69 = 1,114.83/x
3. Step 3: Cross multiply
   1,377.27x = 1,902.69 × 1,114.83
4. Step 4: Simplify right side
   1,377.27x = 2,121,175.89
5. Step 5: Solve for x
   x = 2,121,175.89/1,377.27
6. Step 6: Final answer
   x = 1,540.13