Finding the Fourth Proportional to 3,320.02, 4,981.71 and 2,087.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,320.02 : 4,981.71 = 2,087.22 : x
2. Step 2: Convert to fraction form
   3,320.02/4,981.71 = 2,087.22/x
3. Step 3: Cross multiply
   3,320.02x = 4,981.71 × 2,087.22
4. Step 4: Simplify right side
   3,320.02x = 10,397,924.75
5. Step 5: Solve for x
   x = 10,397,924.75/3,320.02
6. Step 6: Final answer
   x = 3,131.89