Finding the Fourth Proportional to 3,550.88, 4,900.23 and 1,978.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,550.88 : 4,900.23 = 1,978.98 : x
2. Step 2: Convert to fraction form
   3,550.88/4,900.23 = 1,978.98/x
3. Step 3: Cross multiply
   3,550.88x = 4,900.23 × 1,978.98
4. Step 4: Simplify right side
   3,550.88x = 9,697,457.17
5. Step 5: Solve for x
   x = 9,697,457.17/3,550.88
6. Step 6: Final answer
   x = 2,731.00