Finding the Fourth Proportional to 2,622.48, 3,933.12 and 748.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.48 : 3,933.12 = 748.34 : x
2. Step 2: Convert to fraction form
   2,622.48/3,933.12 = 748.34/x
3. Step 3: Cross multiply
   2,622.48x = 3,933.12 × 748.34
4. Step 4: Simplify right side
   2,622.48x = 2,943,303.06
5. Step 5: Solve for x
   x = 2,943,303.06/2,622.48
6. Step 6: Final answer
   x = 1,122.33