Finding the Fourth Proportional to 2,391.52, 3,586.72 and 930.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391.52 : 3,586.72 = 930.08 : x
2. Step 2: Convert to fraction form
   2,391.52/3,586.72 = 930.08/x
3. Step 3: Cross multiply
   2,391.52x = 3,586.72 × 930.08
4. Step 4: Simplify right side
   2,391.52x = 3,335,936.54
5. Step 5: Solve for x
   x = 3,335,936.54/2,391.52
6. Step 6: Final answer
   x = 1,394.90