Finding the Fourth Proportional to 2,921.91, 4,382.79 and 730.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,921.91 : 4,382.79 = 730.59 : x
2. Step 2: Convert to fraction form
   2,921.91/4,382.79 = 730.59/x
3. Step 3: Cross multiply
   2,921.91x = 4,382.79 × 730.59
4. Step 4: Simplify right side
   2,921.91x = 3,202,022.55
5. Step 5: Solve for x
   x = 3,202,022.55/2,921.91
6. Step 6: Final answer
   x = 1,095.87