Finding the Fourth Proportional to 2,326.42, 3,491.00 and 866.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,326.42 : 3,491.00 = 866.60 : x
2. Step 2: Convert to fraction form
   2,326.42/3,491.00 = 866.60/x
3. Step 3: Cross multiply
   2,326.42x = 3,491.00 × 866.60
4. Step 4: Simplify right side
   2,326.42x = 3,025,295.15
5. Step 5: Solve for x
   x = 3,025,295.15/2,326.42
6. Step 6: Final answer
   x = 1,300.41