Finding the Fourth Proportional to 2,026.04, 3,036.80 and 855.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,026.04 : 3,036.80 = 855.72 : x
2. Step 2: Convert to fraction form
   2,026.04/3,036.80 = 855.72/x
3. Step 3: Cross multiply
   2,026.04x = 3,036.80 × 855.72
4. Step 4: Simplify right side
   2,026.04x = 2,598,650.50
5. Step 5: Solve for x
   x = 2,598,650.50/2,026.04
6. Step 6: Final answer
   x = 1,282.63