Finding the Fourth Proportional to 2,149.32, 3,225.96 and 1,665.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,149.32 : 3,225.96 = 1,665.48 : x
2. Step 2: Convert to fraction form
   2,149.32/3,225.96 = 1,665.48/x
3. Step 3: Cross multiply
   2,149.32x = 3,225.96 × 1,665.48
4. Step 4: Simplify right side
   2,149.32x = 5,372,771.86
5. Step 5: Solve for x
   x = 5,372,771.86/2,149.32
6. Step 6: Final answer
   x = 2,499.75