Finding the Fourth Proportional to 2,008.78, 2,771.98 and 1,124.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,008.78 : 2,771.98 = 1,124.39 : x
2. Step 2: Convert to fraction form
   2,008.78/2,771.98 = 1,124.39/x
3. Step 3: Cross multiply
   2,008.78x = 2,771.98 × 1,124.39
4. Step 4: Simplify right side
   2,008.78x = 3,116,790.71
5. Step 5: Solve for x
   x = 3,116,790.71/2,008.78
6. Step 6: Final answer
   x = 1,551.59