Finding the Fourth Proportional to 2,622.03, 3,933.45 and 890.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.03 : 3,933.45 = 890.25 : x
2. Step 2: Convert to fraction form
   2,622.03/3,933.45 = 890.25/x
3. Step 3: Cross multiply
   2,622.03x = 3,933.45 × 890.25
4. Step 4: Simplify right side
   2,622.03x = 3,501,753.86
5. Step 5: Solve for x
   x = 3,501,753.86/2,622.03
6. Step 6: Final answer
   x = 1,335.51