Finding the Fourth Proportional to 1,410.56, 1,946.64 and 789.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.56 : 1,946.64 = 789.44 : x
2. Step 2: Convert to fraction form
   1,410.56/1,946.64 = 789.44/x
3. Step 3: Cross multiply
   1,410.56x = 1,946.64 × 789.44
4. Step 4: Simplify right side
   1,410.56x = 1,536,755.48
5. Step 5: Solve for x
   x = 1,536,755.48/1,410.56
6. Step 6: Final answer
   x = 1,089.46