Finding the Fourth Proportional to 1,718.30, 2,371.06 and 1,055.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,718.30 : 2,371.06 = 1,055.18 : x
2. Step 2: Convert to fraction form
   1,718.30/2,371.06 = 1,055.18/x
3. Step 3: Cross multiply
   1,718.30x = 2,371.06 × 1,055.18
4. Step 4: Simplify right side
   1,718.30x = 2,501,895.09
5. Step 5: Solve for x
   x = 2,501,895.09/1,718.30
6. Step 6: Final answer
   x = 1,456.03