Finding the Fourth Proportional to 2,575.57, 3,860.37 and 1,185.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,575.57 : 3,860.37 = 1,185.99 : x
2. Step 2: Convert to fraction form
   2,575.57/3,860.37 = 1,185.99/x
3. Step 3: Cross multiply
   2,575.57x = 3,860.37 × 1,185.99
4. Step 4: Simplify right side
   2,575.57x = 4,578,360.22
5. Step 5: Solve for x
   x = 4,578,360.22/2,575.57
6. Step 6: Final answer
   x = 1,777.61