Finding the Fourth Proportional to 2,328.05, 3,491.17 and 866.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,328.05 : 3,491.17 = 866.41 : x
2. Step 2: Convert to fraction form
   2,328.05/3,491.17 = 866.41/x
3. Step 3: Cross multiply
   2,328.05x = 3,491.17 × 866.41
4. Step 4: Simplify right side
   2,328.05x = 3,024,773.71
5. Step 5: Solve for x
   x = 3,024,773.71/2,328.05
6. Step 6: Final answer
   x = 1,299.27