Finding the Fourth Proportional to 2,615.83, 3,609.90 and 1,554.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615.83 : 3,609.90 = 1,554.12 : x
2. Step 2: Convert to fraction form
   2,615.83/3,609.90 = 1,554.12/x
3. Step 3: Cross multiply
   2,615.83x = 3,609.90 × 1,554.12
4. Step 4: Simplify right side
   2,615.83x = 5,610,217.79
5. Step 5: Solve for x
   x = 5,610,217.79/2,615.83
6. Step 6: Final answer
   x = 2,144.72