Finding the Fourth Proportional to 2,470.12, 3,407.20 and 1,663.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,470.12 : 3,407.20 = 1,663.94 : x
2. Step 2: Convert to fraction form
   2,470.12/3,407.20 = 1,663.94/x
3. Step 3: Cross multiply
   2,470.12x = 3,407.20 × 1,663.94
4. Step 4: Simplify right side
   2,470.12x = 5,669,380.73
5. Step 5: Solve for x
   x = 5,669,380.73/2,470.12
6. Step 6: Final answer
   x = 2,295.19