Finding the Fourth Proportional to 3,550.68, 4,900.01 and 1,978.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,550.68 : 4,900.01 = 1,978.79 : x
2. Step 2: Convert to fraction form
   3,550.68/4,900.01 = 1,978.79/x
3. Step 3: Cross multiply
   3,550.68x = 4,900.01 × 1,978.79
4. Step 4: Simplify right side
   3,550.68x = 9,696,056.39
5. Step 5: Solve for x
   x = 9,696,056.39/3,550.68
6. Step 6: Final answer
   x = 2,730.76