Finding the Fourth Proportional to 3,457.89, 5,188.46 and 1,726.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,457.89 : 5,188.46 = 1,726.52 : x
2. Step 2: Convert to fraction form
   3,457.89/5,188.46 = 1,726.52/x
3. Step 3: Cross multiply
   3,457.89x = 5,188.46 × 1,726.52
4. Step 4: Simplify right side
   3,457.89x = 8,957,945.38
5. Step 5: Solve for x
   x = 8,957,945.38/3,457.89
6. Step 6: Final answer
   x = 2,590.58