Finding the Fourth Proportional to 2,156.34, 3,234.53 and 1,726.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.34 : 3,234.53 = 1,726.23 : x
2. Step 2: Convert to fraction form
   2,156.34/3,234.53 = 1,726.23/x
3. Step 3: Cross multiply
   2,156.34x = 3,234.53 × 1,726.23
4. Step 4: Simplify right side
   2,156.34x = 5,583,542.72
5. Step 5: Solve for x
   x = 5,583,542.72/2,156.34
6. Step 6: Final answer
   x = 2,589.36