Finding the Fourth Proportional to 2,760.24, 4,139.20 and 1,116.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,760.24 : 4,139.20 = 1,116.35 : x
2. Step 2: Convert to fraction form
   2,760.24/4,139.20 = 1,116.35/x
3. Step 3: Cross multiply
   2,760.24x = 4,139.20 × 1,116.35
4. Step 4: Simplify right side
   2,760.24x = 4,620,795.92
5. Step 5: Solve for x
   x = 4,620,795.92/2,760.24
6. Step 6: Final answer
   x = 1,674.06