Finding the Fourth Proportional to 3,651.12, 5,038.74 and 2,079.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,651.12 : 5,038.74 = 2,079.72 : x
2. Step 2: Convert to fraction form
   3,651.12/5,038.74 = 2,079.72/x
3. Step 3: Cross multiply
   3,651.12x = 5,038.74 × 2,079.72
4. Step 4: Simplify right side
   3,651.12x = 10,479,168.35
5. Step 5: Solve for x
   x = 10,479,168.35/3,651.12
6. Step 6: Final answer
   x = 2,870.12