Finding the Fourth Proportional to 2,616.49, 3,610.78 and 1,437.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616.49 : 3,610.78 = 1,437.58 : x
2. Step 2: Convert to fraction form
   2,616.49/3,610.78 = 1,437.58/x
3. Step 3: Cross multiply
   2,616.49x = 3,610.78 × 1,437.58
4. Step 4: Simplify right side
   2,616.49x = 5,190,781.52
5. Step 5: Solve for x
   x = 5,190,781.52/2,616.49
6. Step 6: Final answer
   x = 1,983.87