Finding the Fourth Proportional to 3,003.90, 4,499.37 and 2,420.70

Step by Step Solution

1. Step 1: Write the proportion equation
   3,003.90 : 4,499.37 = 2,420.70 : x
2. Step 2: Convert to fraction form
   3,003.90/4,499.37 = 2,420.70/x
3. Step 3: Cross multiply
   3,003.90x = 4,499.37 × 2,420.70
4. Step 4: Simplify right side
   3,003.90x = 10,891,624.96
5. Step 5: Solve for x
   x = 10,891,624.96/3,003.90
6. Step 6: Final answer
   x = 3,625.83