Finding the Fourth Proportional to 1,680.88, 2,317.77 and 1,149.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,680.88 : 2,317.77 = 1,149.82 : x
2. Step 2: Convert to fraction form
   1,680.88/2,317.77 = 1,149.82/x
3. Step 3: Cross multiply
   1,680.88x = 2,317.77 × 1,149.82
4. Step 4: Simplify right side
   1,680.88x = 2,665,018.30
5. Step 5: Solve for x
   x = 2,665,018.30/1,680.88
6. Step 6: Final answer
   x = 1,585.49