Finding the Fourth Proportional to 2,415.97, 3,334.52 and 1,422.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,415.97 : 3,334.52 = 1,422.10 : x
2. Step 2: Convert to fraction form
   2,415.97/3,334.52 = 1,422.10/x
3. Step 3: Cross multiply
   2,415.97x = 3,334.52 × 1,422.10
4. Step 4: Simplify right side
   2,415.97x = 4,742,022.12
5. Step 5: Solve for x
   x = 4,742,022.12/2,415.97
6. Step 6: Final answer
   x = 1,962.78