Finding the Fourth Proportional to 2,573.59, 3,858.07 and 1,186.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,573.59 : 3,858.07 = 1,186.22 : x
2. Step 2: Convert to fraction form
   2,573.59/3,858.07 = 1,186.22/x
3. Step 3: Cross multiply
   2,573.59x = 3,858.07 × 1,186.22
4. Step 4: Simplify right side
   2,573.59x = 4,576,500.51
5. Step 5: Solve for x
   x = 4,576,500.51/2,573.59
6. Step 6: Final answer
   x = 1,778.26