Finding the Fourth Proportional to 2,616.31, 3,610.50 and 1,554.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616.31 : 3,610.50 = 1,554.81 : x
2. Step 2: Convert to fraction form
   2,616.31/3,610.50 = 1,554.81/x
3. Step 3: Cross multiply
   2,616.31x = 3,610.50 × 1,554.81
4. Step 4: Simplify right side
   2,616.31x = 5,613,615.68
5. Step 5: Solve for x
   x = 5,613,615.68/2,616.31
6. Step 6: Final answer
   x = 2,145.62