Finding the Fourth Proportional to 1,410.31, 2,114.71 and 679.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.31 : 2,114.71 = 679.19 : x
2. Step 2: Convert to fraction form
   1,410.31/2,114.71 = 679.19/x
3. Step 3: Cross multiply
   1,410.31x = 2,114.71 × 679.19
4. Step 4: Simplify right side
   1,410.31x = 1,436,277.61
5. Step 5: Solve for x
   x = 1,436,277.61/1,410.31
6. Step 6: Final answer
   x = 1,018.41