Finding the Fourth Proportional to 711,748.81, 1,067,635.56 and 262,238.29

Step by Step Solution

1. Step 1: Write the proportion equation
   711,748.81 : 1,067,635.56 = 262,238.29 : x
2. Step 2: Convert to fraction form
   711,748.81/1,067,635.56 = 262,238.29/x
3. Step 3: Cross multiply
   711,748.81x = 1,067,635.56 × 262,238.29
4. Step 4: Simplify right side
   711,748.81x = 279,974,923,597.59
5. Step 5: Solve for x
   x = 279,974,923,597.59/711,748.81
6. Step 6: Final answer
   x = 393,361.98