Finding the Fourth Proportional to 2,577.81, 3,867.23 and 934.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.81 : 3,867.23 = 934.42 : x
2. Step 2: Convert to fraction form
   2,577.81/3,867.23 = 934.42/x
3. Step 3: Cross multiply
   2,577.81x = 3,867.23 × 934.42
4. Step 4: Simplify right side
   2,577.81x = 3,613,617.06
5. Step 5: Solve for x
   x = 3,613,617.06/2,577.81
6. Step 6: Final answer
   x = 1,401.82