Finding the Fourth Proportional to 2,470.38, 3,409.47 and 1,422.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,470.38 : 3,409.47 = 1,422.42 : x
2. Step 2: Convert to fraction form
   2,470.38/3,409.47 = 1,422.42/x
3. Step 3: Cross multiply
   2,470.38x = 3,409.47 × 1,422.42
4. Step 4: Simplify right side
   2,470.38x = 4,849,698.32
5. Step 5: Solve for x
   x = 4,849,698.32/2,470.38
6. Step 6: Final answer
   x = 1,963.14