Finding the Fourth Proportional to 2,048.23, 3,070.52 and 814.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,048.23 : 3,070.52 = 814.85 : x
2. Step 2: Convert to fraction form
   2,048.23/3,070.52 = 814.85/x
3. Step 3: Cross multiply
   2,048.23x = 3,070.52 × 814.85
4. Step 4: Simplify right side
   2,048.23x = 2,502,016.82
5. Step 5: Solve for x
   x = 2,502,016.82/2,048.23
6. Step 6: Final answer
   x = 1,221.55