Finding the Fourth Proportional to 2,187.94, 3,021.69 and 2,137.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.94 : 3,021.69 = 2,137.72 : x
2. Step 2: Convert to fraction form
   2,187.94/3,021.69 = 2,137.72/x
3. Step 3: Cross multiply
   2,187.94x = 3,021.69 × 2,137.72
4. Step 4: Simplify right side
   2,187.94x = 6,459,527.15
5. Step 5: Solve for x
   x = 6,459,527.15/2,187.94
6. Step 6: Final answer
   x = 2,952.33