Finding the Fourth Proportional to 2,216.31, 3,324.50 and 1,061.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.31 : 3,324.50 = 1,061.79 : x
2. Step 2: Convert to fraction form
   2,216.31/3,324.50 = 1,061.79/x
3. Step 3: Cross multiply
   2,216.31x = 3,324.50 × 1,061.79
4. Step 4: Simplify right side
   2,216.31x = 3,529,915.55
5. Step 5: Solve for x
   x = 3,529,915.55/2,216.31
6. Step 6: Final answer
   x = 1,592.70