Finding the Fourth Proportional to 2,136.39, 3,200.94 and 1,725.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,136.39 : 3,200.94 = 1,725.72 : x
2. Step 2: Convert to fraction form
   2,136.39/3,200.94 = 1,725.72/x
3. Step 3: Cross multiply
   2,136.39x = 3,200.94 × 1,725.72
4. Step 4: Simplify right side
   2,136.39x = 5,523,926.18
5. Step 5: Solve for x
   x = 5,523,926.18/2,136.39
6. Step 6: Final answer
   x = 2,585.64