Finding the Fourth Proportional to 2,422.32, 3,630.96 and 1,122.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,422.32 : 3,630.96 = 1,122.72 : x
2. Step 2: Convert to fraction form
   2,422.32/3,630.96 = 1,122.72/x
3. Step 3: Cross multiply
   2,422.32x = 3,630.96 × 1,122.72
4. Step 4: Simplify right side
   2,422.32x = 4,076,551.41
5. Step 5: Solve for x
   x = 4,076,551.41/2,422.32
6. Step 6: Final answer
   x = 1,682.91