Finding the Fourth Proportional to 2,382.05, 3,285.79 and 1,574.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,382.05 : 3,285.79 = 1,574.50 : x
2. Step 2: Convert to fraction form
   2,382.05/3,285.79 = 1,574.50/x
3. Step 3: Cross multiply
   2,382.05x = 3,285.79 × 1,574.50
4. Step 4: Simplify right side
   2,382.05x = 5,173,476.36
5. Step 5: Solve for x
   x = 5,173,476.36/2,382.05
6. Step 6: Final answer
   x = 2,171.86