Finding the Fourth Proportional to 1,725.72, 2,382.12 and 1,136.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,725.72 : 2,382.12 = 1,136.52 : x
2. Step 2: Convert to fraction form
   1,725.72/2,382.12 = 1,136.52/x
3. Step 3: Cross multiply
   1,725.72x = 2,382.12 × 1,136.52
4. Step 4: Simplify right side
   1,725.72x = 2,707,327.02
5. Step 5: Solve for x
   x = 2,707,327.02/1,725.72
6. Step 6: Final answer
   x = 1,568.81