Finding the Fourth Proportional to 3,427, 5,139.72 and 962.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,427 : 5,139.72 = 962.06 : x
2. Step 2: Convert to fraction form
   3,427/5,139.72 = 962.06/x
3. Step 3: Cross multiply
   3,427x = 5,139.72 × 962.06
4. Step 4: Simplify right side
   3,427x = 4,944,719.02
5. Step 5: Solve for x
   x = 4,944,719.02/3,427
6. Step 6: Final answer
   x = 1,442.87