Finding the Fourth Proportional to 1,713.71, 2,362.71 and 1,398.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,713.71 : 2,362.71 = 1,398.65 : x
2. Step 2: Convert to fraction form
   1,713.71/2,362.71 = 1,398.65/x
3. Step 3: Cross multiply
   1,713.71x = 2,362.71 × 1,398.65
4. Step 4: Simplify right side
   1,713.71x = 3,304,604.34
5. Step 5: Solve for x
   x = 3,304,604.34/1,713.71
6. Step 6: Final answer
   x = 1,928.33