Finding the Fourth Proportional to 2,404.55, 3,585.82 and 2,139.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,404.55 : 3,585.82 = 2,139.07 : x
2. Step 2: Convert to fraction form
   2,404.55/3,585.82 = 2,139.07/x
3. Step 3: Cross multiply
   2,404.55x = 3,585.82 × 2,139.07
4. Step 4: Simplify right side
   2,404.55x = 7,670,313.70
5. Step 5: Solve for x
   x = 7,670,313.70/2,404.55
6. Step 6: Final answer
   x = 3,189.92