Finding the Fourth Proportional to 1,854.26, 2,559.72 and 1,257.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,854.26 : 2,559.72 = 1,257.50 : x
2. Step 2: Convert to fraction form
   1,854.26/2,559.72 = 1,257.50/x
3. Step 3: Cross multiply
   1,854.26x = 2,559.72 × 1,257.50
4. Step 4: Simplify right side
   1,854.26x = 3,218,847.90
5. Step 5: Solve for x
   x = 3,218,847.90/1,854.26
6. Step 6: Final answer
   x = 1,735.92