Finding the Fourth Proportional to 3,111.57, 4,666.14 and 1,162.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.57 : 4,666.14 = 1,162.71 : x
2. Step 2: Convert to fraction form
   3,111.57/4,666.14 = 1,162.71/x
3. Step 3: Cross multiply
   3,111.57x = 4,666.14 × 1,162.71
4. Step 4: Simplify right side
   3,111.57x = 5,425,367.64
5. Step 5: Solve for x
   x = 5,425,367.64/3,111.57
6. Step 6: Final answer
   x = 1,743.61