Finding the Fourth Proportional to 2,384.58, 3,558.32 and 2,139.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,384.58 : 3,558.32 = 2,139.42 : x
2. Step 2: Convert to fraction form
   2,384.58/3,558.32 = 2,139.42/x
3. Step 3: Cross multiply
   2,384.58x = 3,558.32 × 2,139.42
4. Step 4: Simplify right side
   2,384.58x = 7,612,730.28
5. Step 5: Solve for x
   x = 7,612,730.28/2,384.58
6. Step 6: Final answer
   x = 3,192.48