Finding the Fourth Proportional to 2,622.39, 3,934.64 and 2,580.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.39 : 3,934.64 = 2,580.93 : x
2. Step 2: Convert to fraction form
   2,622.39/3,934.64 = 2,580.93/x
3. Step 3: Cross multiply
   2,622.39x = 3,934.64 × 2,580.93
4. Step 4: Simplify right side
   2,622.39x = 10,155,036.87
5. Step 5: Solve for x
   x = 10,155,036.87/2,622.39
6. Step 6: Final answer
   x = 3,872.44