Finding the Fourth Proportional to 2,663.24, 3,673.20 and 1,778.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,663.24 : 3,673.20 = 1,778.72 : x
2. Step 2: Convert to fraction form
   2,663.24/3,673.20 = 1,778.72/x
3. Step 3: Cross multiply
   2,663.24x = 3,673.20 × 1,778.72
4. Step 4: Simplify right side
   2,663.24x = 6,533,594.30
5. Step 5: Solve for x
   x = 6,533,594.30/2,663.24
6. Step 6: Final answer
   x = 2,453.25