Finding the Fourth Proportional to 2,155.50, 2,974.95 and 1,630.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.50 : 2,974.95 = 1,630.62 : x
2. Step 2: Convert to fraction form
   2,155.50/2,974.95 = 1,630.62/x
3. Step 3: Cross multiply
   2,155.50x = 2,974.95 × 1,630.62
4. Step 4: Simplify right side
   2,155.50x = 4,851,012.97
5. Step 5: Solve for x
   x = 4,851,012.97/2,155.50
6. Step 6: Final answer
   x = 2,250.53