Finding the Fourth Proportional to 1,095.42, 1,511.54 and 723.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.42 : 1,511.54 = 723.12 : x
2. Step 2: Convert to fraction form
   1,095.42/1,511.54 = 723.12/x
3. Step 3: Cross multiply
   1,095.42x = 1,511.54 × 723.12
4. Step 4: Simplify right side
   1,095.42x = 1,093,024.80
5. Step 5: Solve for x
   x = 1,093,024.80/1,095.42
6. Step 6: Final answer
   x = 997.81