Finding the Fourth Proportional to 2,825.28, 4,238.28 and 1,180.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,825.28 : 4,238.28 = 1,180.80 : x
2. Step 2: Convert to fraction form
   2,825.28/4,238.28 = 1,180.80/x
3. Step 3: Cross multiply
   2,825.28x = 4,238.28 × 1,180.80
4. Step 4: Simplify right side
   2,825.28x = 5,004,561.02
5. Step 5: Solve for x
   x = 5,004,561.02/2,825.28
6. Step 6: Final answer
   x = 1,771.35