Finding the Fourth Proportional to 2,144,297.48, 3,215,732.72 and 864,574.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144,297.48 : 3,215,732.72 = 864,574.43 : x
2. Step 2: Convert to fraction form
   2,144,297.48/3,215,732.72 = 864,574.43/x
3. Step 3: Cross multiply
   2,144,297.48x = 3,215,732.72 × 864,574.43
4. Step 4: Simplify right side
   2,144,297.48x = 2,780,240,287,142.81
5. Step 5: Solve for x
   x = 2,780,240,287,142.81/2,144,297.48
6. Step 6: Final answer
   x = 1,296,573.96