Finding the Fourth Proportional to 3,978.15, 5,969.37 and 2,337.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978.15 : 5,969.37 = 2,337.90 : x
2. Step 2: Convert to fraction form
   3,978.15/5,969.37 = 2,337.90/x
3. Step 3: Cross multiply
   3,978.15x = 5,969.37 × 2,337.90
4. Step 4: Simplify right side
   3,978.15x = 13,955,790.12
5. Step 5: Solve for x
   x = 13,955,790.12/3,978.15
6. Step 6: Final answer
   x = 3,508.11