Finding the Fourth Proportional to 2,158.34, 3,237.53 and 1,728.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158.34 : 3,237.53 = 1,728.23 : x
2. Step 2: Convert to fraction form
   2,158.34/3,237.53 = 1,728.23/x
3. Step 3: Cross multiply
   2,158.34x = 3,237.53 × 1,728.23
4. Step 4: Simplify right side
   2,158.34x = 5,595,196.47
5. Step 5: Solve for x
   x = 5,595,196.47/2,158.34
6. Step 6: Final answer
   x = 2,592.36