Finding the Fourth Proportional to 1,717.82, 2,370.59 and 931.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,717.82 : 2,370.59 = 931.87 : x
2. Step 2: Convert to fraction form
   1,717.82/2,370.59 = 931.87/x
3. Step 3: Cross multiply
   1,717.82x = 2,370.59 × 931.87
4. Step 4: Simplify right side
   1,717.82x = 2,209,081.70
5. Step 5: Solve for x
   x = 2,209,081.70/1,717.82
6. Step 6: Final answer
   x = 1,285.98