Finding the Fourth Proportional to 2,145.37, 3,217.27 and 739.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145.37 : 3,217.27 = 739.50 : x
2. Step 2: Convert to fraction form
   2,145.37/3,217.27 = 739.50/x
3. Step 3: Cross multiply
   2,145.37x = 3,217.27 × 739.50
4. Step 4: Simplify right side
   2,145.37x = 2,379,167.47
5. Step 5: Solve for x
   x = 2,379,167.47/2,145.37
6. Step 6: Final answer
   x = 1,108.98