Finding the Fourth Proportional to 2,006.72, 2,769.34 and 1,122.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,006.72 : 2,769.34 = 1,122.62 : x
2. Step 2: Convert to fraction form
   2,006.72/2,769.34 = 1,122.62/x
3. Step 3: Cross multiply
   2,006.72x = 2,769.34 × 1,122.62
4. Step 4: Simplify right side
   2,006.72x = 3,108,916.47
5. Step 5: Solve for x
   x = 3,108,916.47/2,006.72
6. Step 6: Final answer
   x = 1,549.25