Finding the Fourth Proportional to 1,627.98, 2,428.86 and 1,422.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,627.98 : 2,428.86 = 1,422.24 : x
2. Step 2: Convert to fraction form
   1,627.98/2,428.86 = 1,422.24/x
3. Step 3: Cross multiply
   1,627.98x = 2,428.86 × 1,422.24
4. Step 4: Simplify right side
   1,627.98x = 3,454,421.85
5. Step 5: Solve for x
   x = 3,454,421.85/1,627.98
6. Step 6: Final answer
   x = 2,121.91