Finding the Fourth Proportional to 2,783.82, 4,176.63 and 935.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,783.82 : 4,176.63 = 935.78 : x
2. Step 2: Convert to fraction form
   2,783.82/4,176.63 = 935.78/x
3. Step 3: Cross multiply
   2,783.82x = 4,176.63 × 935.78
4. Step 4: Simplify right side
   2,783.82x = 3,908,406.82
5. Step 5: Solve for x
   x = 3,908,406.82/2,783.82
6. Step 6: Final answer
   x = 1,403.97