Finding the Fourth Proportional to 3,081.55, 4,251.50 and 1,754.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,081.55 : 4,251.50 = 1,754.31 : x
2. Step 2: Convert to fraction form
   3,081.55/4,251.50 = 1,754.31/x
3. Step 3: Cross multiply
   3,081.55x = 4,251.50 × 1,754.31
4. Step 4: Simplify right side
   3,081.55x = 7,458,440.19
5. Step 5: Solve for x
   x = 7,458,440.19/3,081.55
6. Step 6: Final answer
   x = 2,420.36