Finding the Fourth Proportional to 2,132.49, 3,195.96 and 1,091.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,132.49 : 3,195.96 = 1,091.61 : x
2. Step 2: Convert to fraction form
   2,132.49/3,195.96 = 1,091.61/x
3. Step 3: Cross multiply
   2,132.49x = 3,195.96 × 1,091.61
4. Step 4: Simplify right side
   2,132.49x = 3,488,741.90
5. Step 5: Solve for x
   x = 3,488,741.90/2,132.49
6. Step 6: Final answer
   x = 1,635.99