Finding the Fourth Proportional to 2,935.86, 4,042.50 and 2,700.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,935.86 : 4,042.50 = 2,700.78 : x
2. Step 2: Convert to fraction form
   2,935.86/4,042.50 = 2,700.78/x
3. Step 3: Cross multiply
   2,935.86x = 4,042.50 × 2,700.78
4. Step 4: Simplify right side
   2,935.86x = 10,917,903.15
5. Step 5: Solve for x
   x = 10,917,903.15/2,935.86
6. Step 6: Final answer
   x = 3,718.81