Finding the Fourth Proportional to 2,445.88, 3,373.76 and 1,661.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,445.88 : 3,373.76 = 1,661.28 : x
2. Step 2: Convert to fraction form
   2,445.88/3,373.76 = 1,661.28/x
3. Step 3: Cross multiply
   2,445.88x = 3,373.76 × 1,661.28
4. Step 4: Simplify right side
   2,445.88x = 5,604,760.01
5. Step 5: Solve for x
   x = 5,604,760.01/2,445.88
6. Step 6: Final answer
   x = 2,291.51