Finding the Fourth Proportional to 2,535.74, 3,804.03 and 804.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,535.74 : 3,804.03 = 804.78 : x
2. Step 2: Convert to fraction form
   2,535.74/3,804.03 = 804.78/x
3. Step 3: Cross multiply
   2,535.74x = 3,804.03 × 804.78
4. Step 4: Simplify right side
   2,535.74x = 3,061,407.26
5. Step 5: Solve for x
   x = 3,061,407.26/2,535.74
6. Step 6: Final answer
   x = 1,207.30