Finding the Fourth Proportional to 2,008.32, 2,771.28 and 1,728.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,008.32 : 2,771.28 = 1,728.96 : x
2. Step 2: Convert to fraction form
   2,008.32/2,771.28 = 1,728.96/x
3. Step 3: Cross multiply
   2,008.32x = 2,771.28 × 1,728.96
4. Step 4: Simplify right side
   2,008.32x = 4,791,432.27
5. Step 5: Solve for x
   x = 4,791,432.27/2,008.32
6. Step 6: Final answer
   x = 2,385.79