Finding the Fourth Proportional to 3,728.32, 5,591.52 and 2,164.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,728.32 : 5,591.52 = 2,164.96 : x
2. Step 2: Convert to fraction form
   3,728.32/5,591.52 = 2,164.96/x
3. Step 3: Cross multiply
   3,728.32x = 5,591.52 × 2,164.96
4. Step 4: Simplify right side
   3,728.32x = 12,105,417.14
5. Step 5: Solve for x
   x = 12,105,417.14/3,728.32
6. Step 6: Final answer
   x = 3,246.88