Finding the Fourth Proportional to 2,878.71, 3,968.61 and 2,432.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,878.71 : 3,968.61 = 2,432.43 : x
2. Step 2: Convert to fraction form
   2,878.71/3,968.61 = 2,432.43/x
3. Step 3: Cross multiply
   2,878.71x = 3,968.61 × 2,432.43
4. Step 4: Simplify right side
   2,878.71x = 9,653,360.32
5. Step 5: Solve for x
   x = 9,653,360.32/2,878.71
6. Step 6: Final answer
   x = 3,353.36