Finding the Fourth Proportional to 3,003.30, 4,142.61 and 1,807.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,003.30 : 4,142.61 = 1,807.74 : x
2. Step 2: Convert to fraction form
   3,003.30/4,142.61 = 1,807.74/x
3. Step 3: Cross multiply
   3,003.30x = 4,142.61 × 1,807.74
4. Step 4: Simplify right side
   3,003.30x = 7,488,761.80
5. Step 5: Solve for x
   x = 7,488,761.80/3,003.30
6. Step 6: Final answer
   x = 2,493.51