Finding the Fourth Proportional to 2,320.27, 3,200.79 and 1,574.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,320.27 : 3,200.79 = 1,574.26 : x
2. Step 2: Convert to fraction form
   2,320.27/3,200.79 = 1,574.26/x
3. Step 3: Cross multiply
   2,320.27x = 3,200.79 × 1,574.26
4. Step 4: Simplify right side
   2,320.27x = 5,038,875.67
5. Step 5: Solve for x
   x = 5,038,875.67/2,320.27
6. Step 6: Final answer
   x = 2,171.68