Finding the Fourth Proportional to 1,707.14, 2,355.81 and 1,008.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,707.14 : 2,355.81 = 1,008.50 : x
2. Step 2: Convert to fraction form
   1,707.14/2,355.81 = 1,008.50/x
3. Step 3: Cross multiply
   1,707.14x = 2,355.81 × 1,008.50
4. Step 4: Simplify right side
   1,707.14x = 2,375,834.39
5. Step 5: Solve for x
   x = 2,375,834.39/1,707.14
6. Step 6: Final answer
   x = 1,391.70