Finding the Fourth Proportional to 2,006.18, 2,769.72 and 1,260.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,006.18 : 2,769.72 = 1,260.78 : x
2. Step 2: Convert to fraction form
   2,006.18/2,769.72 = 1,260.78/x
3. Step 3: Cross multiply
   2,006.18x = 2,769.72 × 1,260.78
4. Step 4: Simplify right side
   2,006.18x = 3,492,007.58
5. Step 5: Solve for x
   x = 3,492,007.58/2,006.18
6. Step 6: Final answer
   x = 1,740.63