Finding the Fourth Proportional to 2,357.43, 3,253.37 and 1,309.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,357.43 : 3,253.37 = 1,309.50 : x
2. Step 2: Convert to fraction form
   2,357.43/3,253.37 = 1,309.50/x
3. Step 3: Cross multiply
   2,357.43x = 3,253.37 × 1,309.50
4. Step 4: Simplify right side
   2,357.43x = 4,260,288.02
5. Step 5: Solve for x
   x = 4,260,288.02/2,357.43
6. Step 6: Final answer
   x = 1,807.17