Finding the Fourth Proportional to 1,101.02, 1,518.96 and 722.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.02 : 1,518.96 = 722.81 : x
2. Step 2: Convert to fraction form
   1,101.02/1,518.96 = 722.81/x
3. Step 3: Cross multiply
   1,101.02x = 1,518.96 × 722.81
4. Step 4: Simplify right side
   1,101.02x = 1,097,919.48
5. Step 5: Solve for x
   x = 1,097,919.48/1,101.02
6. Step 6: Final answer
   x = 997.18