Finding the Fourth Proportional to 2,265.72, 3,397.86 and 622.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,265.72 : 3,397.86 = 622.02 : x
2. Step 2: Convert to fraction form
   2,265.72/3,397.86 = 622.02/x
3. Step 3: Cross multiply
   2,265.72x = 3,397.86 × 622.02
4. Step 4: Simplify right side
   2,265.72x = 2,113,536.88
5. Step 5: Solve for x
   x = 2,113,536.88/2,265.72
6. Step 6: Final answer
   x = 932.83