Finding the Fourth Proportional to 1,519.16, 2,278.34 and 738.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,519.16 : 2,278.34 = 738.74 : x
2. Step 2: Convert to fraction form
   1,519.16/2,278.34 = 738.74/x
3. Step 3: Cross multiply
   1,519.16x = 2,278.34 × 738.74
4. Step 4: Simplify right side
   1,519.16x = 1,683,100.89
5. Step 5: Solve for x
   x = 1,683,100.89/1,519.16
6. Step 6: Final answer
   x = 1,107.92