Finding the Fourth Proportional to 1,718.78, 2,371.91 and 932.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,718.78 : 2,371.91 = 932.83 : x
2. Step 2: Convert to fraction form
   1,718.78/2,371.91 = 932.83/x
3. Step 3: Cross multiply
   1,718.78x = 2,371.91 × 932.83
4. Step 4: Simplify right side
   1,718.78x = 2,212,585.89
5. Step 5: Solve for x
   x = 2,212,585.89/1,718.78
6. Step 6: Final answer
   x = 1,287.30