Finding the Fourth Proportional to 2,286.10, 3,428.47 and 969.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,286.10 : 3,428.47 = 969.83 : x
2. Step 2: Convert to fraction form
   2,286.10/3,428.47 = 969.83/x
3. Step 3: Cross multiply
   2,286.10x = 3,428.47 × 969.83
4. Step 4: Simplify right side
   2,286.10x = 3,325,030.96
5. Step 5: Solve for x
   x = 3,325,030.96/2,286.10
6. Step 6: Final answer
   x = 1,454.46