Finding the Fourth Proportional to 7,192.55, 10,788.85 and 1,998.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,192.55 : 10,788.85 = 1,998.42 : x
2. Step 2: Convert to fraction form
   7,192.55/10,788.85 = 1,998.42/x
3. Step 3: Cross multiply
   7,192.55x = 10,788.85 × 1,998.42
4. Step 4: Simplify right side
   7,192.55x = 21,560,665.10
5. Step 5: Solve for x
   x = 21,560,665.10/7,192.55
6. Step 6: Final answer
   x = 2,997.64