Finding the Fourth Proportional to 2,761.42, 4,139.80 and 1,200.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,761.42 : 4,139.80 = 1,200.24 : x
2. Step 2: Convert to fraction form
   2,761.42/4,139.80 = 1,200.24/x
3. Step 3: Cross multiply
   2,761.42x = 4,139.80 × 1,200.24
4. Step 4: Simplify right side
   2,761.42x = 4,968,753.55
5. Step 5: Solve for x
   x = 4,968,753.55/2,761.42
6. Step 6: Final answer
   x = 1,799.35