Finding the Fourth Proportional to 2,021.58, 3,031.41 and 788.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021.58 : 3,031.41 = 788.04 : x
2. Step 2: Convert to fraction form
   2,021.58/3,031.41 = 788.04/x
3. Step 3: Cross multiply
   2,021.58x = 3,031.41 × 788.04
4. Step 4: Simplify right side
   2,021.58x = 2,388,872.34
5. Step 5: Solve for x
   x = 2,388,872.34/2,021.58
6. Step 6: Final answer
   x = 1,181.69