Finding the Fourth Proportional to 2,083.12, 3,124.86 and 622.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.12 : 3,124.86 = 622.24 : x
2. Step 2: Convert to fraction form
   2,083.12/3,124.86 = 622.24/x
3. Step 3: Cross multiply
   2,083.12x = 3,124.86 × 622.24
4. Step 4: Simplify right side
   2,083.12x = 1,944,412.89
5. Step 5: Solve for x
   x = 1,944,412.89/2,083.12
6. Step 6: Final answer
   x = 933.41