Finding the Fourth Proportional to 1,410.12, 1,946.37 and 912.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.12 : 1,946.37 = 912.74 : x
2. Step 2: Convert to fraction form
   1,410.12/1,946.37 = 912.74/x
3. Step 3: Cross multiply
   1,410.12x = 1,946.37 × 912.74
4. Step 4: Simplify right side
   1,410.12x = 1,776,520.02
5. Step 5: Solve for x
   x = 1,776,520.02/1,410.12
6. Step 6: Final answer
   x = 1,259.84