Finding the Fourth Proportional to 2,755.10, 4,132.61 and 1,111.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,755.10 : 4,132.61 = 1,111.61 : x
2. Step 2: Convert to fraction form
   2,755.10/4,132.61 = 1,111.61/x
3. Step 3: Cross multiply
   2,755.10x = 4,132.61 × 1,111.61
4. Step 4: Simplify right side
   2,755.10x = 4,593,824.38
5. Step 5: Solve for x
   x = 4,593,824.38/2,755.10
6. Step 6: Final answer
   x = 1,667.39