Finding the Fourth Proportional to 2,723.95, 4,086.22 and 874.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,723.95 : 4,086.22 = 874.63 : x
2. Step 2: Convert to fraction form
   2,723.95/4,086.22 = 874.63/x
3. Step 3: Cross multiply
   2,723.95x = 4,086.22 × 874.63
4. Step 4: Simplify right side
   2,723.95x = 3,573,923.47
5. Step 5: Solve for x
   x = 3,573,923.47/2,723.95
6. Step 6: Final answer
   x = 1,312.04