Finding the Fourth Proportional to 2,382.66, 3,574.59 and 921.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,382.66 : 3,574.59 = 921.42 : x
2. Step 2: Convert to fraction form
   2,382.66/3,574.59 = 921.42/x
3. Step 3: Cross multiply
   2,382.66x = 3,574.59 × 921.42
4. Step 4: Simplify right side
   2,382.66x = 3,293,698.72
5. Step 5: Solve for x
   x = 3,293,698.72/2,382.66
6. Step 6: Final answer
   x = 1,382.36