Finding the Fourth Proportional to 2,885.48, 4,324.17 and 1,240.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,885.48 : 4,324.17 = 1,240.79 : x
2. Step 2: Convert to fraction form
   2,885.48/4,324.17 = 1,240.79/x
3. Step 3: Cross multiply
   2,885.48x = 4,324.17 × 1,240.79
4. Step 4: Simplify right side
   2,885.48x = 5,365,386.89
5. Step 5: Solve for x
   x = 5,365,386.89/2,885.48
6. Step 6: Final answer
   x = 1,859.44