Finding the Fourth Proportional to 2,470.72, 3,410.76 and 1,422.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,470.72 : 3,410.76 = 1,422.58 : x
2. Step 2: Convert to fraction form
   2,470.72/3,410.76 = 1,422.58/x
3. Step 3: Cross multiply
   2,470.72x = 3,410.76 × 1,422.58
4. Step 4: Simplify right side
   2,470.72x = 4,852,078.96
5. Step 5: Solve for x
   x = 4,852,078.96/2,470.72
6. Step 6: Final answer
   x = 1,963.83