Finding the Fourth Proportional to 2,120.93, 3,180.12 and 950.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,120.93 : 3,180.12 = 950.72 : x
2. Step 2: Convert to fraction form
   2,120.93/3,180.12 = 950.72/x
3. Step 3: Cross multiply
   2,120.93x = 3,180.12 × 950.72
4. Step 4: Simplify right side
   2,120.93x = 3,023,388.49
5. Step 5: Solve for x
   x = 3,023,388.49/2,120.93
6. Step 6: Final answer
   x = 1,425.50