Finding the Fourth Proportional to 1,339.96, 2,008.38 and 559.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.96 : 2,008.38 = 559.52 : x
2. Step 2: Convert to fraction form
   1,339.96/2,008.38 = 559.52/x
3. Step 3: Cross multiply
   1,339.96x = 2,008.38 × 559.52
4. Step 4: Simplify right side
   1,339.96x = 1,123,728.78
5. Step 5: Solve for x
   x = 1,123,728.78/1,339.96
6. Step 6: Final answer
   x = 838.63