Finding the Fourth Proportional to 3,483.64, 5,222.38 and 2,665.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,483.64 : 5,222.38 = 2,665.56 : x
2. Step 2: Convert to fraction form
   3,483.64/5,222.38 = 2,665.56/x
3. Step 3: Cross multiply
   3,483.64x = 5,222.38 × 2,665.56
4. Step 4: Simplify right side
   3,483.64x = 13,920,590.15
5. Step 5: Solve for x
   x = 13,920,590.15/3,483.64
6. Step 6: Final answer
   x = 3,995.99