Finding the Fourth Proportional to 2,880.72, 4,320.59 and 932.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,880.72 : 4,320.59 = 932.94 : x
2. Step 2: Convert to fraction form
   2,880.72/4,320.59 = 932.94/x
3. Step 3: Cross multiply
   2,880.72x = 4,320.59 × 932.94
4. Step 4: Simplify right side
   2,880.72x = 4,030,846.57
5. Step 5: Solve for x
   x = 4,030,846.57/2,880.72
6. Step 6: Final answer
   x = 1,399.25