Finding the Fourth Proportional to 2,701.47, 4,049.78 and 1,059.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,701.47 : 4,049.78 = 1,059.20 : x
2. Step 2: Convert to fraction form
   2,701.47/4,049.78 = 1,059.20/x
3. Step 3: Cross multiply
   2,701.47x = 4,049.78 × 1,059.20
4. Step 4: Simplify right side
   2,701.47x = 4,289,501.43
5. Step 5: Solve for x
   x = 4,289,501.43/2,701.47
6. Step 6: Final answer
   x = 1,587.84