Finding the Fourth Proportional to 2,047.40, 3,068.80 and 814.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,047.40 : 3,068.80 = 814.48 : x
2. Step 2: Convert to fraction form
   2,047.40/3,068.80 = 814.48/x
3. Step 3: Cross multiply
   2,047.40x = 3,068.80 × 814.48
4. Step 4: Simplify right side
   2,047.40x = 2,499,460.88
5. Step 5: Solve for x
   x = 2,499,460.88/2,047.40
6. Step 6: Final answer
   x = 1,220.80