Finding the Fourth Proportional to 2,561.22, 3,837.20 and 1,175.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.22 : 3,837.20 = 1,175.72 : x
2. Step 2: Convert to fraction form
   2,561.22/3,837.20 = 1,175.72/x
3. Step 3: Cross multiply
   2,561.22x = 3,837.20 × 1,175.72
4. Step 4: Simplify right side
   2,561.22x = 4,511,447.72
5. Step 5: Solve for x
   x = 4,511,447.72/2,561.22
6. Step 6: Final answer
   x = 1,761.44