Finding the Fourth Proportional to 2,447.47, 3,373.68 and 1,660.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,447.47 : 3,373.68 = 1,660.15 : x
2. Step 2: Convert to fraction form
   2,447.47/3,373.68 = 1,660.15/x
3. Step 3: Cross multiply
   2,447.47x = 3,373.68 × 1,660.15
4. Step 4: Simplify right side
   2,447.47x = 5,600,814.85
5. Step 5: Solve for x
   x = 5,600,814.85/2,447.47
6. Step 6: Final answer
   x = 2,288.41