Finding the Fourth Proportional to 2,139.48, 3,202.56 and 1,162.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139.48 : 3,202.56 = 1,162.62 : x
2. Step 2: Convert to fraction form
   2,139.48/3,202.56 = 1,162.62/x
3. Step 3: Cross multiply
   2,139.48x = 3,202.56 × 1,162.62
4. Step 4: Simplify right side
   2,139.48x = 3,723,360.31
5. Step 5: Solve for x
   x = 3,723,360.31/2,139.48
6. Step 6: Final answer
   x = 1,740.31