Finding the Fourth Proportional to 3,754.29, 5,621.72 and 2,587.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,754.29 : 5,621.72 = 2,587.89 : x
2. Step 2: Convert to fraction form
   3,754.29/5,621.72 = 2,587.89/x
3. Step 3: Cross multiply
   3,754.29x = 5,621.72 × 2,587.89
4. Step 4: Simplify right side
   3,754.29x = 14,548,380.03
5. Step 5: Solve for x
   x = 14,548,380.03/3,754.29
6. Step 6: Final answer
   x = 3,875.13