Finding the Fourth Proportional to 3,550.06, 4,899.12 and 1,978.24

Step by Step Solution

1. Step 1: Write the proportion equation
   3,550.06 : 4,899.12 = 1,978.24 : x
2. Step 2: Convert to fraction form
   3,550.06/4,899.12 = 1,978.24/x
3. Step 3: Cross multiply
   3,550.06x = 4,899.12 × 1,978.24
4. Step 4: Simplify right side
   3,550.06x = 9,691,635.15
5. Step 5: Solve for x
   x = 9,691,635.15/3,550.06
6. Step 6: Final answer
   x = 2,729.99