Finding the Fourth Proportional to 2,503.10, 3,752.35 and 859.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,503.10 : 3,752.35 = 859.27 : x
2. Step 2: Convert to fraction form
   2,503.10/3,752.35 = 859.27/x
3. Step 3: Cross multiply
   2,503.10x = 3,752.35 × 859.27
4. Step 4: Simplify right side
   2,503.10x = 3,224,281.78
5. Step 5: Solve for x
   x = 3,224,281.78/2,503.10
6. Step 6: Final answer
   x = 1,288.12