Finding the Fourth Proportional to 2,326.52, 3,490.21 and 766.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,326.52 : 3,490.21 = 766.61 : x
2. Step 2: Convert to fraction form
   2,326.52/3,490.21 = 766.61/x
3. Step 3: Cross multiply
   2,326.52x = 3,490.21 × 766.61
4. Step 4: Simplify right side
   2,326.52x = 2,675,629.89
5. Step 5: Solve for x
   x = 2,675,629.89/2,326.52
6. Step 6: Final answer
   x = 1,150.06