Finding the Fourth Proportional to 2,137.88, 2,950.27 and 1,206.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,137.88 : 2,950.27 = 1,206.38 : x
2. Step 2: Convert to fraction form
   2,137.88/2,950.27 = 1,206.38/x
3. Step 3: Cross multiply
   2,137.88x = 2,950.27 × 1,206.38
4. Step 4: Simplify right side
   2,137.88x = 3,559,146.72
5. Step 5: Solve for x
   x = 3,559,146.72/2,137.88
6. Step 6: Final answer
   x = 1,664.80