Finding the Fourth Proportional to 2,200.12, 3,300.56 and 739.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,200.12 : 3,300.56 = 739.28 : x
2. Step 2: Convert to fraction form
   2,200.12/3,300.56 = 739.28/x
3. Step 3: Cross multiply
   2,200.12x = 3,300.56 × 739.28
4. Step 4: Simplify right side
   2,200.12x = 2,440,038.00
5. Step 5: Solve for x
   x = 2,440,038.00/2,200.12
6. Step 6: Final answer
   x = 1,109.05