Finding the Fourth Proportional to 2,502.55, 3,754.29 and 859.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,502.55 : 3,754.29 = 859.33 : x
2. Step 2: Convert to fraction form
   2,502.55/3,754.29 = 859.33/x
3. Step 3: Cross multiply
   2,502.55x = 3,754.29 × 859.33
4. Step 4: Simplify right side
   2,502.55x = 3,226,155.25
5. Step 5: Solve for x
   x = 3,226,155.25/2,502.55
6. Step 6: Final answer
   x = 1,289.15