Finding the Fourth Proportional to 2,760.30, 4,139.10 and 1,200.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,760.30 : 4,139.10 = 1,200.24 : x
2. Step 2: Convert to fraction form
   2,760.30/4,139.10 = 1,200.24/x
3. Step 3: Cross multiply
   2,760.30x = 4,139.10 × 1,200.24
4. Step 4: Simplify right side
   2,760.30x = 4,967,913.38
5. Step 5: Solve for x
   x = 4,967,913.38/2,760.30
6. Step 6: Final answer
   x = 1,799.77