Finding the Fourth Proportional to 2,200.79, 3,300.98 and 739.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,200.79 : 3,300.98 = 739.76 : x
2. Step 2: Convert to fraction form
   2,200.79/3,300.98 = 739.76/x
3. Step 3: Cross multiply
   2,200.79x = 3,300.98 × 739.76
4. Step 4: Simplify right side
   2,200.79x = 2,441,912.76
5. Step 5: Solve for x
   x = 2,441,912.76/2,200.79
6. Step 6: Final answer
   x = 1,109.56