Finding the Fourth Proportional to 2,124.69, 3,187.84 and 969.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124.69 : 3,187.84 = 969.63 : x
2. Step 2: Convert to fraction form
   2,124.69/3,187.84 = 969.63/x
3. Step 3: Cross multiply
   2,124.69x = 3,187.84 × 969.63
4. Step 4: Simplify right side
   2,124.69x = 3,091,025.30
5. Step 5: Solve for x
   x = 3,091,025.30/2,124.69
6. Step 6: Final answer
   x = 1,454.81