Finding the Fourth Proportional to 1,742.90, 2,610.77 and 1,082.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,742.90 : 2,610.77 = 1,082.61 : x
2. Step 2: Convert to fraction form
   1,742.90/2,610.77 = 1,082.61/x
3. Step 3: Cross multiply
   1,742.90x = 2,610.77 × 1,082.61
4. Step 4: Simplify right side
   1,742.90x = 2,826,440.30
5. Step 5: Solve for x
   x = 2,826,440.30/1,742.90
6. Step 6: Final answer
   x = 1,621.69