Finding the Fourth Proportional to 3,426.58, 5,139.72 and 2,383.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,426.58 : 5,139.72 = 2,383.57 : x
2. Step 2: Convert to fraction form
   3,426.58/5,139.72 = 2,383.57/x
3. Step 3: Cross multiply
   3,426.58x = 5,139.72 × 2,383.57
4. Step 4: Simplify right side
   3,426.58x = 12,250,856.70
5. Step 5: Solve for x
   x = 12,250,856.70/3,426.58
6. Step 6: Final answer
   x = 3,575.25