Finding the Fourth Proportional to 1,275.63, 1,760.31 and 751.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,275.63 : 1,760.31 = 751.56 : x
2. Step 2: Convert to fraction form
   1,275.63/1,760.31 = 751.56/x
3. Step 3: Cross multiply
   1,275.63x = 1,760.31 × 751.56
4. Step 4: Simplify right side
   1,275.63x = 1,322,978.58
5. Step 5: Solve for x
   x = 1,322,978.58/1,275.63
6. Step 6: Final answer
   x = 1,037.12