Finding the Fourth Proportional to 2,566.04, 3,849.56 and 811.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,566.04 : 3,849.56 = 811.47 : x
2. Step 2: Convert to fraction form
   2,566.04/3,849.56 = 811.47/x
3. Step 3: Cross multiply
   2,566.04x = 3,849.56 × 811.47
4. Step 4: Simplify right side
   2,566.04x = 3,123,798.40
5. Step 5: Solve for x
   x = 3,123,798.40/2,566.04
6. Step 6: Final answer
   x = 1,217.36