Finding the Fourth Proportional to 2,501.89, 3,752.91 and 858.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,501.89 : 3,752.91 = 858.41 : x
2. Step 2: Convert to fraction form
   2,501.89/3,752.91 = 858.41/x
3. Step 3: Cross multiply
   2,501.89x = 3,752.91 × 858.41
4. Step 4: Simplify right side
   2,501.89x = 3,221,527.56
5. Step 5: Solve for x
   x = 3,221,527.56/2,501.89
6. Step 6: Final answer
   x = 1,287.64