Finding the Fourth Proportional to 1,077.72, 1,616.18 and 337.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077.72 : 1,616.18 = 337.25 : x
2. Step 2: Convert to fraction form
   1,077.72/1,616.18 = 337.25/x
3. Step 3: Cross multiply
   1,077.72x = 1,616.18 × 337.25
4. Step 4: Simplify right side
   1,077.72x = 545,046.94
5. Step 5: Solve for x
   x = 545,046.94/1,077.72
6. Step 6: Final answer
   x = 505.74