Finding the Fourth Proportional to 3,926.16, 5,880.42 and 2,813.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,926.16 : 5,880.42 = 2,813.42 : x
2. Step 2: Convert to fraction form
   3,926.16/5,880.42 = 2,813.42/x
3. Step 3: Cross multiply
   3,926.16x = 5,880.42 × 2,813.42
4. Step 4: Simplify right side
   3,926.16x = 16,544,061.83
5. Step 5: Solve for x
   x = 16,544,061.83/3,926.16
6. Step 6: Final answer
   x = 4,213.80