Finding the Fourth Proportional to 3,990.94, 5,510.04 and 2,734.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,990.94 : 5,510.04 = 2,734.12 : x
2. Step 2: Convert to fraction form
   3,990.94/5,510.04 = 2,734.12/x
3. Step 3: Cross multiply
   3,990.94x = 5,510.04 × 2,734.12
4. Step 4: Simplify right side
   3,990.94x = 15,065,110.56
5. Step 5: Solve for x
   x = 15,065,110.56/3,990.94
6. Step 6: Final answer
   x = 3,774.83