Finding the Fourth Proportional to 2,390.37, 3,599.59 and 2,085.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390.37 : 3,599.59 = 2,085.85 : x
2. Step 2: Convert to fraction form
   2,390.37/3,599.59 = 2,085.85/x
3. Step 3: Cross multiply
   2,390.37x = 3,599.59 × 2,085.85
4. Step 4: Simplify right side
   2,390.37x = 7,508,204.80
5. Step 5: Solve for x
   x = 7,508,204.80/2,390.37
6. Step 6: Final answer
   x = 3,141.02