Finding the Fourth Proportional to 2,507.40, 3,759.91 and 751.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,507.40 : 3,759.91 = 751.72 : x
2. Step 2: Convert to fraction form
   2,507.40/3,759.91 = 751.72/x
3. Step 3: Cross multiply
   2,507.40x = 3,759.91 × 751.72
4. Step 4: Simplify right side
   2,507.40x = 2,826,399.55
5. Step 5: Solve for x
   x = 2,826,399.55/2,507.40
6. Step 6: Final answer
   x = 1,127.22