Finding the Fourth Proportional to 1,725.87, 2,589.72 and 752.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,725.87 : 2,589.72 = 752.05 : x
2. Step 2: Convert to fraction form
   1,725.87/2,589.72 = 752.05/x
3. Step 3: Cross multiply
   1,725.87x = 2,589.72 × 752.05
4. Step 4: Simplify right side
   1,725.87x = 1,947,603.57
5. Step 5: Solve for x
   x = 1,947,603.57/1,725.87
6. Step 6: Final answer
   x = 1,128.47