Finding the Fourth Proportional to 5,233.80, 7,222.72 and 2,875.92

Step by Step Solution

1. Step 1: Write the proportion equation
   5,233.80 : 7,222.72 = 2,875.92 : x
2. Step 2: Convert to fraction form
   5,233.80/7,222.72 = 2,875.92/x
3. Step 3: Cross multiply
   5,233.80x = 7,222.72 × 2,875.92
4. Step 4: Simplify right side
   5,233.80x = 20,771,964.90
5. Step 5: Solve for x
   x = 20,771,964.90/5,233.80
6. Step 6: Final answer
   x = 3,968.81