Finding the Fourth Proportional to 3,550.50, 4,899.69 and 1,978.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,550.50 : 4,899.69 = 1,978.92 : x
2. Step 2: Convert to fraction form
   3,550.50/4,899.69 = 1,978.92/x
3. Step 3: Cross multiply
   3,550.50x = 4,899.69 × 1,978.92
4. Step 4: Simplify right side
   3,550.50x = 9,696,094.53
5. Step 5: Solve for x
   x = 9,696,094.53/3,550.50
6. Step 6: Final answer
   x = 2,730.91