Finding the Fourth Proportional to 2,087.10, 3,131.46 and 626.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.10 : 3,131.46 = 626.67 : x
2. Step 2: Convert to fraction form
   2,087.10/3,131.46 = 626.67/x
3. Step 3: Cross multiply
   2,087.10x = 3,131.46 × 626.67
4. Step 4: Simplify right side
   2,087.10x = 1,962,392.04
5. Step 5: Solve for x
   x = 1,962,392.04/2,087.10
6. Step 6: Final answer
   x = 940.25