Finding the Fourth Proportional to 2,783.86, 4,176.72 and 935.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,783.86 : 4,176.72 = 935.16 : x
2. Step 2: Convert to fraction form
   2,783.86/4,176.72 = 935.16/x
3. Step 3: Cross multiply
   2,783.86x = 4,176.72 × 935.16
4. Step 4: Simplify right side
   2,783.86x = 3,905,901.48
5. Step 5: Solve for x
   x = 3,905,901.48/2,783.86
6. Step 6: Final answer
   x = 1,403.05