Finding the Fourth Proportional to 4,333.18, 5,976.30 and 2,916.40

Step by Step Solution

1. Step 1: Write the proportion equation
   4,333.18 : 5,976.30 = 2,916.40 : x
2. Step 2: Convert to fraction form
   4,333.18/5,976.30 = 2,916.40/x
3. Step 3: Cross multiply
   4,333.18x = 5,976.30 × 2,916.40
4. Step 4: Simplify right side
   4,333.18x = 17,429,281.32
5. Step 5: Solve for x
   x = 17,429,281.32/4,333.18
6. Step 6: Final answer
   x = 4,022.28