Finding the Fourth Proportional to 2,501.01, 3,751.62 and 858.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,501.01 : 3,751.62 = 858.69 : x
2. Step 2: Convert to fraction form
   2,501.01/3,751.62 = 858.69/x
3. Step 3: Cross multiply
   2,501.01x = 3,751.62 × 858.69
4. Step 4: Simplify right side
   2,501.01x = 3,221,478.58
5. Step 5: Solve for x
   x = 3,221,478.58/2,501.01
6. Step 6: Final answer
   x = 1,288.07