Finding the Fourth Proportional to 2,162.24, 3,240.64 and 1,381.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.24 : 3,240.64 = 1,381.94 : x
2. Step 2: Convert to fraction form
   2,162.24/3,240.64 = 1,381.94/x
3. Step 3: Cross multiply
   2,162.24x = 3,240.64 × 1,381.94
4. Step 4: Simplify right side
   2,162.24x = 4,478,370.04
5. Step 5: Solve for x
   x = 4,478,370.04/2,162.24
6. Step 6: Final answer
   x = 2,071.17