Finding the Fourth Proportional to 2,601.09, 3,900.72 and 751.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,601.09 : 3,900.72 = 751.71 : x
2. Step 2: Convert to fraction form
   2,601.09/3,900.72 = 751.71/x
3. Step 3: Cross multiply
   2,601.09x = 3,900.72 × 751.71
4. Step 4: Simplify right side
   2,601.09x = 2,932,210.23
5. Step 5: Solve for x
   x = 2,932,210.23/2,601.09
6. Step 6: Final answer
   x = 1,127.30