Finding the Fourth Proportional to 3,649.60, 5,038.72 and 2,653.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,649.60 : 5,038.72 = 2,653.92 : x
2. Step 2: Convert to fraction form
   3,649.60/5,038.72 = 2,653.92/x
3. Step 3: Cross multiply
   3,649.60x = 5,038.72 × 2,653.92
4. Step 4: Simplify right side
   3,649.60x = 13,372,359.78
5. Step 5: Solve for x
   x = 13,372,359.78/3,649.60
6. Step 6: Final answer
   x = 3,664.06