Finding the Fourth Proportional to 2,622.15, 3,933.29 and 1,236.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.15 : 3,933.29 = 1,236.15 : x
2. Step 2: Convert to fraction form
   2,622.15/3,933.29 = 1,236.15/x
3. Step 3: Cross multiply
   2,622.15x = 3,933.29 × 1,236.15
4. Step 4: Simplify right side
   2,622.15x = 4,862,139.52
5. Step 5: Solve for x
   x = 4,862,139.52/2,622.15
6. Step 6: Final answer
   x = 1,854.26