Finding the Fourth Proportional to 2,880.39, 4,321.27 and 932.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,880.39 : 4,321.27 = 932.59 : x
2. Step 2: Convert to fraction form
   2,880.39/4,321.27 = 932.59/x
3. Step 3: Cross multiply
   2,880.39x = 4,321.27 × 932.59
4. Step 4: Simplify right side
   2,880.39x = 4,029,976.26
5. Step 5: Solve for x
   x = 4,029,976.26/2,880.39
6. Step 6: Final answer
   x = 1,399.11