Finding the Fourth Proportional to 2,007.78, 2,772.33 and 1,336.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.78 : 2,772.33 = 1,336.23 : x
2. Step 2: Convert to fraction form
   2,007.78/2,772.33 = 1,336.23/x
3. Step 3: Cross multiply
   2,007.78x = 2,772.33 × 1,336.23
4. Step 4: Simplify right side
   2,007.78x = 3,704,470.52
5. Step 5: Solve for x
   x = 3,704,470.52/2,007.78
6. Step 6: Final answer
   x = 1,845.06