Finding the Fourth Proportional to 5,282.82, 7,290.27 and 2,892.80

Step by Step Solution

1. Step 1: Write the proportion equation
   5,282.82 : 7,290.27 = 2,892.80 : x
2. Step 2: Convert to fraction form
   5,282.82/7,290.27 = 2,892.80/x
3. Step 3: Cross multiply
   5,282.82x = 7,290.27 × 2,892.80
4. Step 4: Simplify right side
   5,282.82x = 21,089,311.28
5. Step 5: Solve for x
   x = 21,089,311.28/5,282.82
6. Step 6: Final answer
   x = 3,992.06