Finding the Fourth Proportional to 2,653.83, 3,981.15 and 804.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,653.83 : 3,981.15 = 804.87 : x
2. Step 2: Convert to fraction form
   2,653.83/3,981.15 = 804.87/x
3. Step 3: Cross multiply
   2,653.83x = 3,981.15 × 804.87
4. Step 4: Simplify right side
   2,653.83x = 3,204,308.20
5. Step 5: Solve for x
   x = 3,204,308.20/2,653.83
6. Step 6: Final answer
   x = 1,207.43