Finding the Fourth Proportional to 3,990.15, 5,504.76 and 2,573.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,990.15 : 5,504.76 = 2,573.53 : x
2. Step 2: Convert to fraction form
   3,990.15/5,504.76 = 2,573.53/x
3. Step 3: Cross multiply
   3,990.15x = 5,504.76 × 2,573.53
4. Step 4: Simplify right side
   3,990.15x = 14,166,665.00
5. Step 5: Solve for x
   x = 14,166,665.00/3,990.15
6. Step 6: Final answer
   x = 3,550.41