Finding the Fourth Proportional to 2,868.89, 3,956.06 and 2,124.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,868.89 : 3,956.06 = 2,124.30 : x
2. Step 2: Convert to fraction form
   2,868.89/3,956.06 = 2,124.30/x
3. Step 3: Cross multiply
   2,868.89x = 3,956.06 × 2,124.30
4. Step 4: Simplify right side
   2,868.89x = 8,403,863.57
5. Step 5: Solve for x
   x = 8,403,863.57/2,868.89
6. Step 6: Final answer
   x = 2,929.31