Finding the Fourth Proportional to 2,326.89, 3,491.06 and 766.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,326.89 : 3,491.06 = 766.91 : x
2. Step 2: Convert to fraction form
   2,326.89/3,491.06 = 766.91/x
3. Step 3: Cross multiply
   2,326.89x = 3,491.06 × 766.91
4. Step 4: Simplify right side
   2,326.89x = 2,677,307.53
5. Step 5: Solve for x
   x = 2,677,307.53/2,326.89
6. Step 6: Final answer
   x = 1,150.59