Finding the Fourth Proportional to 2,132.22, 3,191.49 and 1,142.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,132.22 : 3,191.49 = 1,142.57 : x
2. Step 2: Convert to fraction form
   2,132.22/3,191.49 = 1,142.57/x
3. Step 3: Cross multiply
   2,132.22x = 3,191.49 × 1,142.57
4. Step 4: Simplify right side
   2,132.22x = 3,646,484.77
5. Step 5: Solve for x
   x = 3,646,484.77/2,132.22
6. Step 6: Final answer
   x = 1,710.18