Finding the Fourth Proportional to 1,100.05, 1,519.71 and 722.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.05 : 1,519.71 = 722.83 : x
2. Step 2: Convert to fraction form
   1,100.05/1,519.71 = 722.83/x
3. Step 3: Cross multiply
   1,100.05x = 1,519.71 × 722.83
4. Step 4: Simplify right side
   1,100.05x = 1,098,491.98
5. Step 5: Solve for x
   x = 1,098,491.98/1,100.05
6. Step 6: Final answer
   x = 998.58