Finding the Fourth Proportional to 2,724.10, 4,086.52 and 874.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,724.10 : 4,086.52 = 874.60 : x
2. Step 2: Convert to fraction form
   2,724.10/4,086.52 = 874.60/x
3. Step 3: Cross multiply
   2,724.10x = 4,086.52 × 874.60
4. Step 4: Simplify right side
   2,724.10x = 3,574,070.39
5. Step 5: Solve for x
   x = 3,574,070.39/2,724.10
6. Step 6: Final answer
   x = 1,312.02