Finding the Fourth Proportional to 1,081.73, 1,492.93 and 662.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.73 : 1,492.93 = 662.15 : x
2. Step 2: Convert to fraction form
   1,081.73/1,492.93 = 662.15/x
3. Step 3: Cross multiply
   1,081.73x = 1,492.93 × 662.15
4. Step 4: Simplify right side
   1,081.73x = 988,548.16
5. Step 5: Solve for x
   x = 988,548.16/1,081.73
6. Step 6: Final answer
   x = 913.86