Finding the Fourth Proportional to 2,003.85, 2,764.50 and 1,331.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.85 : 2,764.50 = 1,331.98 : x
2. Step 2: Convert to fraction form
   2,003.85/2,764.50 = 1,331.98/x
3. Step 3: Cross multiply
   2,003.85x = 2,764.50 × 1,331.98
4. Step 4: Simplify right side
   2,003.85x = 3,682,251.80
5. Step 5: Solve for x
   x = 3,682,251.80/2,003.85
6. Step 6: Final answer
   x = 1,837.59