Finding the Fourth Proportional to 2,723.94, 4,085.76 and 874.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,723.94 : 4,085.76 = 874.98 : x
2. Step 2: Convert to fraction form
   2,723.94/4,085.76 = 874.98/x
3. Step 3: Cross multiply
   2,723.94x = 4,085.76 × 874.98
4. Step 4: Simplify right side
   2,723.94x = 3,574,958.28
5. Step 5: Solve for x
   x = 3,574,958.28/2,723.94
6. Step 6: Final answer
   x = 1,312.42