Finding the Fourth Proportional to 2,932.31, 4,360.81 and 2,840.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,932.31 : 4,360.81 = 2,840.04 : x
2. Step 2: Convert to fraction form
   2,932.31/4,360.81 = 2,840.04/x
3. Step 3: Cross multiply
   2,932.31x = 4,360.81 × 2,840.04
4. Step 4: Simplify right side
   2,932.31x = 12,384,867.73
5. Step 5: Solve for x
   x = 12,384,867.73/2,932.31
6. Step 6: Final answer
   x = 4,223.58