Finding the Fourth Proportional to 2,055.90, 3,082.49 and 1,131.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,055.90 : 3,082.49 = 1,131.90 : x
2. Step 2: Convert to fraction form
   2,055.90/3,082.49 = 1,131.90/x
3. Step 3: Cross multiply
   2,055.90x = 3,082.49 × 1,131.90
4. Step 4: Simplify right side
   2,055.90x = 3,489,057.46
5. Step 5: Solve for x
   x = 3,489,057.46/2,055.90
6. Step 6: Final answer
   x = 1,697.09