Finding the Fourth Proportional to 3,978.32, 5,491.08 and 2,562.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978.32 : 5,491.08 = 2,562.96 : x
2. Step 2: Convert to fraction form
   3,978.32/5,491.08 = 2,562.96/x
3. Step 3: Cross multiply
   3,978.32x = 5,491.08 × 2,562.96
4. Step 4: Simplify right side
   3,978.32x = 14,073,418.40
5. Step 5: Solve for x
   x = 14,073,418.40/3,978.32
6. Step 6: Final answer
   x = 3,537.53