Finding the Fourth Proportional to 1,632.87, 2,253.61 and 969.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,632.87 : 2,253.61 = 969.89 : x
2. Step 2: Convert to fraction form
   1,632.87/2,253.61 = 969.89/x
3. Step 3: Cross multiply
   1,632.87x = 2,253.61 × 969.89
4. Step 4: Simplify right side
   1,632.87x = 2,185,737.69
5. Step 5: Solve for x
   x = 2,185,737.69/1,632.87
6. Step 6: Final answer
   x = 1,338.59