Finding the Fourth Proportional to 2,265.55, 3,398.60 and 804.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,265.55 : 3,398.60 = 804.71 : x
2. Step 2: Convert to fraction form
   2,265.55/3,398.60 = 804.71/x
3. Step 3: Cross multiply
   2,265.55x = 3,398.60 × 804.71
4. Step 4: Simplify right side
   2,265.55x = 2,734,897.91
5. Step 5: Solve for x
   x = 2,734,897.91/2,265.55
6. Step 6: Final answer
   x = 1,207.17