Finding the Fourth Proportional to 2,535.24, 3,803.46 and 780.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,535.24 : 3,803.46 = 780.18 : x
2. Step 2: Convert to fraction form
   2,535.24/3,803.46 = 780.18/x
3. Step 3: Cross multiply
   2,535.24x = 3,803.46 × 780.18
4. Step 4: Simplify right side
   2,535.24x = 2,967,383.42
5. Step 5: Solve for x
   x = 2,967,383.42/2,535.24
6. Step 6: Final answer
   x = 1,170.45