Finding the Fourth Proportional to 1,559.88, 2,339.94 and 738

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.88 : 2,339.94 = 738 : x
2. Step 2: Convert to fraction form
   1,559.88/2,339.94 = 738/x
3. Step 3: Cross multiply
   1,559.88x = 2,339.94 × 738
4. Step 4: Simplify right side
   1,559.88x = 1,726,875.72
5. Step 5: Solve for x
   x = 1,726,875.72/1,559.88
6. Step 6: Final answer
   x = 1,107.06