Finding the Fourth Proportional to 2,729.38, 4,090.64 and 1,167.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,729.38 : 4,090.64 = 1,167.55 : x
2. Step 2: Convert to fraction form
   2,729.38/4,090.64 = 1,167.55/x
3. Step 3: Cross multiply
   2,729.38x = 4,090.64 × 1,167.55
4. Step 4: Simplify right side
   2,729.38x = 4,776,019.42
5. Step 5: Solve for x
   x = 4,776,019.42/2,729.38
6. Step 6: Final answer
   x = 1,749.86