Finding the Fourth Proportional to 2,616.20, 3,610.35 and 1,437.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616.20 : 3,610.35 = 1,437.35 : x
2. Step 2: Convert to fraction form
   2,616.20/3,610.35 = 1,437.35/x
3. Step 3: Cross multiply
   2,616.20x = 3,610.35 × 1,437.35
4. Step 4: Simplify right side
   2,616.20x = 5,189,318.52
5. Step 5: Solve for x
   x = 5,189,318.52/2,616.20
6. Step 6: Final answer
   x = 1,983.54