Finding the Fourth Proportional to 1,715.30, 2,366.33 and 1,007.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,715.30 : 2,366.33 = 1,007.18 : x
2. Step 2: Convert to fraction form
   1,715.30/2,366.33 = 1,007.18/x
3. Step 3: Cross multiply
   1,715.30x = 2,366.33 × 1,007.18
4. Step 4: Simplify right side
   1,715.30x = 2,383,303.38
5. Step 5: Solve for x
   x = 2,383,303.38/1,715.30
6. Step 6: Final answer
   x = 1,389.44