Finding the Fourth Proportional to 1,976.82, 2,728.22 and 1,137.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,976.82 : 2,728.22 = 1,137.56 : x
2. Step 2: Convert to fraction form
   1,976.82/2,728.22 = 1,137.56/x
3. Step 3: Cross multiply
   1,976.82x = 2,728.22 × 1,137.56
4. Step 4: Simplify right side
   1,976.82x = 3,103,494.61
5. Step 5: Solve for x
   x = 3,103,494.61/1,976.82
6. Step 6: Final answer
   x = 1,569.94