Finding the Fourth Proportional to 2,880.30, 3,972.69 and 2,134.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,880.30 : 3,972.69 = 2,134.29 : x
2. Step 2: Convert to fraction form
   2,880.30/3,972.69 = 2,134.29/x
3. Step 3: Cross multiply
   2,880.30x = 3,972.69 × 2,134.29
4. Step 4: Simplify right side
   2,880.30x = 8,478,872.54
5. Step 5: Solve for x
   x = 8,478,872.54/2,880.30
6. Step 6: Final answer
   x = 2,943.75