Finding the Fourth Proportional to 1,559.78, 2,338.52 and 737.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.78 : 2,338.52 = 737.58 : x
2. Step 2: Convert to fraction form
   1,559.78/2,338.52 = 737.58/x
3. Step 3: Cross multiply
   1,559.78x = 2,338.52 × 737.58
4. Step 4: Simplify right side
   1,559.78x = 1,724,845.58
5. Step 5: Solve for x
   x = 1,724,845.58/1,559.78
6. Step 6: Final answer
   x = 1,105.83