Finding the Fourth Proportional to 2,635.56, 3,954.24 and 992.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,635.56 : 3,954.24 = 992.34 : x
2. Step 2: Convert to fraction form
   2,635.56/3,954.24 = 992.34/x
3. Step 3: Cross multiply
   2,635.56x = 3,954.24 × 992.34
4. Step 4: Simplify right side
   2,635.56x = 3,923,950.52
5. Step 5: Solve for x
   x = 3,923,950.52/2,635.56
6. Step 6: Final answer
   x = 1,488.85