Finding the Fourth Proportional to 1,410.05, 2,116.37 and 717.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.05 : 2,116.37 = 717.20 : x
2. Step 2: Convert to fraction form
   1,410.05/2,116.37 = 717.20/x
3. Step 3: Cross multiply
   1,410.05x = 2,116.37 × 717.20
4. Step 4: Simplify right side
   1,410.05x = 1,517,856.98
5. Step 5: Solve for x
   x = 1,517,856.98/1,410.05
6. Step 6: Final answer
   x = 1,076.46