Finding the Fourth Proportional to 1,633.35, 2,255.81 and 1,422.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,633.35 : 2,255.81 = 1,422.55 : x
2. Step 2: Convert to fraction form
   1,633.35/2,255.81 = 1,422.55/x
3. Step 3: Cross multiply
   1,633.35x = 2,255.81 × 1,422.55
4. Step 4: Simplify right side
   1,633.35x = 3,209,002.52
5. Step 5: Solve for x
   x = 3,209,002.52/1,633.35
6. Step 6: Final answer
   x = 1,964.68