Finding the Fourth Proportional to 2,561.52, 3,840.99 and 1,173.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.52 : 3,840.99 = 1,173.69 : x
2. Step 2: Convert to fraction form
   2,561.52/3,840.99 = 1,173.69/x
3. Step 3: Cross multiply
   2,561.52x = 3,840.99 × 1,173.69
4. Step 4: Simplify right side
   2,561.52x = 4,508,137.05
5. Step 5: Solve for x
   x = 4,508,137.05/2,561.52
6. Step 6: Final answer
   x = 1,759.94