Finding the Fourth Proportional to 3,550.82, 4,900.02 and 1,978.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,550.82 : 4,900.02 = 1,978.88 : x
2. Step 2: Convert to fraction form
   3,550.82/4,900.02 = 1,978.88/x
3. Step 3: Cross multiply
   3,550.82x = 4,900.02 × 1,978.88
4. Step 4: Simplify right side
   3,550.82x = 9,696,527.08
5. Step 5: Solve for x
   x = 9,696,527.08/3,550.82
6. Step 6: Final answer
   x = 2,730.79