Finding the Fourth Proportional to 2,609.80, 3,601.47 and 1,562.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609.80 : 3,601.47 = 1,562.20 : x
2. Step 2: Convert to fraction form
   2,609.80/3,601.47 = 1,562.20/x
3. Step 3: Cross multiply
   2,609.80x = 3,601.47 × 1,562.20
4. Step 4: Simplify right side
   2,609.80x = 5,626,216.43
5. Step 5: Solve for x
   x = 5,626,216.43/2,609.80
6. Step 6: Final answer
   x = 2,155.80