Finding the Fourth Proportional to 2,664.50, 3,997.71 and 1,932.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,664.50 : 3,997.71 = 1,932.80 : x
2. Step 2: Convert to fraction form
   2,664.50/3,997.71 = 1,932.80/x
3. Step 3: Cross multiply
   2,664.50x = 3,997.71 × 1,932.80
4. Step 4: Simplify right side
   2,664.50x = 7,726,773.89
5. Step 5: Solve for x
   x = 7,726,773.89/2,664.50
6. Step 6: Final answer
   x = 2,899.90