Finding the Fourth Proportional to 1,095.31, 1,511.67 and 723.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.31 : 1,511.67 = 723.07 : x
2. Step 2: Convert to fraction form
   1,095.31/1,511.67 = 723.07/x
3. Step 3: Cross multiply
   1,095.31x = 1,511.67 × 723.07
4. Step 4: Simplify right side
   1,095.31x = 1,093,039.45
5. Step 5: Solve for x
   x = 1,093,039.45/1,095.31
6. Step 6: Final answer
   x = 997.92