Finding the Fourth Proportional to 2,307.62, 3,183.30 and 1,561.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,307.62 : 3,183.30 = 1,561.83 : x
2. Step 2: Convert to fraction form
   2,307.62/3,183.30 = 1,561.83/x
3. Step 3: Cross multiply
   2,307.62x = 3,183.30 × 1,561.83
4. Step 4: Simplify right side
   2,307.62x = 4,971,757.52
5. Step 5: Solve for x
   x = 4,971,757.52/2,307.62
6. Step 6: Final answer
   x = 2,154.50