Finding the Fourth Proportional to 2,155.25, 2,974.61 and 1,630.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.25 : 2,974.61 = 1,630.37 : x
2. Step 2: Convert to fraction form
   2,155.25/2,974.61 = 1,630.37/x
3. Step 3: Cross multiply
   2,155.25x = 2,974.61 × 1,630.37
4. Step 4: Simplify right side
   2,155.25x = 4,849,714.91
5. Step 5: Solve for x
   x = 4,849,714.91/2,155.25
6. Step 6: Final answer
   x = 2,250.19