Finding the Fourth Proportional to 2,107.50, 3,162.69 and 739.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,107.50 : 3,162.69 = 739.50 : x
2. Step 2: Convert to fraction form
   2,107.50/3,162.69 = 739.50/x
3. Step 3: Cross multiply
   2,107.50x = 3,162.69 × 739.50
4. Step 4: Simplify right side
   2,107.50x = 2,338,809.26
5. Step 5: Solve for x
   x = 2,338,809.26/2,107.50
6. Step 6: Final answer
   x = 1,109.76