Finding the Fourth Proportional to 1,410.25, 1,945.87 and 912.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.25 : 1,945.87 = 912.82 : x
2. Step 2: Convert to fraction form
   1,410.25/1,945.87 = 912.82/x
3. Step 3: Cross multiply
   1,410.25x = 1,945.87 × 912.82
4. Step 4: Simplify right side
   1,410.25x = 1,776,229.05
5. Step 5: Solve for x
   x = 1,776,229.05/1,410.25
6. Step 6: Final answer
   x = 1,259.51