Finding the Fourth Proportional to 3,604.68, 4,978.02 and 2,488.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,604.68 : 4,978.02 = 2,488.50 : x
2. Step 2: Convert to fraction form
   3,604.68/4,978.02 = 2,488.50/x
3. Step 3: Cross multiply
   3,604.68x = 4,978.02 × 2,488.50
4. Step 4: Simplify right side
   3,604.68x = 12,387,802.77
5. Step 5: Solve for x
   x = 12,387,802.77/3,604.68
6. Step 6: Final answer
   x = 3,436.59