Finding the Fourth Proportional to 3,580.32, 5,366.96 and 3,288.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,580.32 : 5,366.96 = 3,288.72 : x
2. Step 2: Convert to fraction form
   3,580.32/5,366.96 = 3,288.72/x
3. Step 3: Cross multiply
   3,580.32x = 5,366.96 × 3,288.72
4. Step 4: Simplify right side
   3,580.32x = 17,650,428.69
5. Step 5: Solve for x
   x = 17,650,428.69/3,580.32
6. Step 6: Final answer
   x = 4,929.85