Finding the Fourth Proportional to 3,664.55, 5,499.52 and 2,279.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,664.55 : 5,499.52 = 2,279.92 : x
2. Step 2: Convert to fraction form
   3,664.55/5,499.52 = 2,279.92/x
3. Step 3: Cross multiply
   3,664.55x = 5,499.52 × 2,279.92
4. Step 4: Simplify right side
   3,664.55x = 12,538,446.19
5. Step 5: Solve for x
   x = 12,538,446.19/3,664.55
6. Step 6: Final answer
   x = 3,421.56