Finding the Fourth Proportional to 2,003.59, 3,000.77 and 1,387.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.59 : 3,000.77 = 1,387.73 : x
2. Step 2: Convert to fraction form
   2,003.59/3,000.77 = 1,387.73/x
3. Step 3: Cross multiply
   2,003.59x = 3,000.77 × 1,387.73
4. Step 4: Simplify right side
   2,003.59x = 4,164,258.55
5. Step 5: Solve for x
   x = 4,164,258.55/2,003.59
6. Step 6: Final answer
   x = 2,078.40