Finding the Fourth Proportional to 1,725.31, 2,587.72 and 751.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,725.31 : 2,587.72 = 751.29 : x
2. Step 2: Convert to fraction form
   1,725.31/2,587.72 = 751.29/x
3. Step 3: Cross multiply
   1,725.31x = 2,587.72 × 751.29
4. Step 4: Simplify right side
   1,725.31x = 1,944,128.16
5. Step 5: Solve for x
   x = 1,944,128.16/1,725.31
6. Step 6: Final answer
   x = 1,126.83