Finding the Fourth Proportional to 2,555.82, 3,830.40 and 1,167.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555.82 : 3,830.40 = 1,167.12 : x
2. Step 2: Convert to fraction form
   2,555.82/3,830.40 = 1,167.12/x
3. Step 3: Cross multiply
   2,555.82x = 3,830.40 × 1,167.12
4. Step 4: Simplify right side
   2,555.82x = 4,470,536.45
5. Step 5: Solve for x
   x = 4,470,536.45/2,555.82
6. Step 6: Final answer
   x = 1,749.16