Finding the Fourth Proportional to 2,285.62, 3,428.78 and 969.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,285.62 : 3,428.78 = 969.37 : x
2. Step 2: Convert to fraction form
   2,285.62/3,428.78 = 969.37/x
3. Step 3: Cross multiply
   2,285.62x = 3,428.78 × 969.37
4. Step 4: Simplify right side
   2,285.62x = 3,323,756.47
5. Step 5: Solve for x
   x = 3,323,756.47/2,285.62
6. Step 6: Final answer
   x = 1,454.20