Finding the Fourth Proportional to 1,377.42, 1,900.71 and 1,116.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377.42 : 1,900.71 = 1,116.06 : x
2. Step 2: Convert to fraction form
   1,377.42/1,900.71 = 1,116.06/x
3. Step 3: Cross multiply
   1,377.42x = 1,900.71 × 1,116.06
4. Step 4: Simplify right side
   1,377.42x = 2,121,306.40
5. Step 5: Solve for x
   x = 2,121,306.40/1,377.42
6. Step 6: Final answer
   x = 1,540.06