Finding the Fourth Proportional to 2,632.72, 3,945.84 and 2,146.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,632.72 : 3,945.84 = 2,146.72 : x
2. Step 2: Convert to fraction form
   2,632.72/3,945.84 = 2,146.72/x
3. Step 3: Cross multiply
   2,632.72x = 3,945.84 × 2,146.72
4. Step 4: Simplify right side
   2,632.72x = 8,470,613.64
5. Step 5: Solve for x
   x = 8,470,613.64/2,632.72
6. Step 6: Final answer
   x = 3,217.44