Finding the Fourth Proportional to 1,597.91, 2,395.89 and 622.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,597.91 : 2,395.89 = 622.88 : x
2. Step 2: Convert to fraction form
   1,597.91/2,395.89 = 622.88/x
3. Step 3: Cross multiply
   1,597.91x = 2,395.89 × 622.88
4. Step 4: Simplify right side
   1,597.91x = 1,492,339.98
5. Step 5: Solve for x
   x = 1,492,339.98/1,597.91
6. Step 6: Final answer
   x = 933.93