Finding the Fourth Proportional to 2,196.50, 3,288.60 and 1,372.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.50 : 3,288.60 = 1,372.73 : x
2. Step 2: Convert to fraction form
   2,196.50/3,288.60 = 1,372.73/x
3. Step 3: Cross multiply
   2,196.50x = 3,288.60 × 1,372.73
4. Step 4: Simplify right side
   2,196.50x = 4,514,343.44
5. Step 5: Solve for x
   x = 4,514,343.44/2,196.50
6. Step 6: Final answer
   x = 2,055.25