Finding the Fourth Proportional to 2,775.82, 4,164.24 and 926.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,775.82 : 4,164.24 = 926.76 : x
2. Step 2: Convert to fraction form
   2,775.82/4,164.24 = 926.76/x
3. Step 3: Cross multiply
   2,775.82x = 4,164.24 × 926.76
4. Step 4: Simplify right side
   2,775.82x = 3,859,251.06
5. Step 5: Solve for x
   x = 3,859,251.06/2,775.82
6. Step 6: Final answer
   x = 1,390.31