Finding the Fourth Proportional to 1,077.82, 1,616.71 and 347.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077.82 : 1,616.71 = 347.38 : x
2. Step 2: Convert to fraction form
   1,077.82/1,616.71 = 347.38/x
3. Step 3: Cross multiply
   1,077.82x = 1,616.71 × 347.38
4. Step 4: Simplify right side
   1,077.82x = 561,612.72
5. Step 5: Solve for x
   x = 561,612.72/1,077.82
6. Step 6: Final answer
   x = 521.06