Finding the Fourth Proportional to 2,610.90, 3,918.17 and 1,151.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.90 : 3,918.17 = 1,151.08 : x
2. Step 2: Convert to fraction form
   2,610.90/3,918.17 = 1,151.08/x
3. Step 3: Cross multiply
   2,610.90x = 3,918.17 × 1,151.08
4. Step 4: Simplify right side
   2,610.90x = 4,510,120.21
5. Step 5: Solve for x
   x = 4,510,120.21/2,610.90
6. Step 6: Final answer
   x = 1,727.42