Finding the Fourth Proportional to 1,075.05, 1,611.32 and 496.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,075.05 : 1,611.32 = 496.71 : x
2. Step 2: Convert to fraction form
   1,075.05/1,611.32 = 496.71/x
3. Step 3: Cross multiply
   1,075.05x = 1,611.32 × 496.71
4. Step 4: Simplify right side
   1,075.05x = 800,356.27
5. Step 5: Solve for x
   x = 800,356.27/1,075.05
6. Step 6: Final answer
   x = 744.48