Finding the Fourth Proportional to 1,087.76, 1,501.43 and 662.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.76 : 1,501.43 = 662.54 : x
2. Step 2: Convert to fraction form
   1,087.76/1,501.43 = 662.54/x
3. Step 3: Cross multiply
   1,087.76x = 1,501.43 × 662.54
4. Step 4: Simplify right side
   1,087.76x = 994,754.12
5. Step 5: Solve for x
   x = 994,754.12/1,087.76
6. Step 6: Final answer
   x = 914.50