Finding the Fourth Proportional to 1,315.96, 1,974.48 and 738.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,315.96 : 1,974.48 = 738.82 : x
2. Step 2: Convert to fraction form
   1,315.96/1,974.48 = 738.82/x
3. Step 3: Cross multiply
   1,315.96x = 1,974.48 × 738.82
4. Step 4: Simplify right side
   1,315.96x = 1,458,785.31
5. Step 5: Solve for x
   x = 1,458,785.31/1,315.96
6. Step 6: Final answer
   x = 1,108.53