Finding the Fourth Proportional to 1,073.58, 1,610.03 and 662.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,073.58 : 1,610.03 = 662.10 : x
2. Step 2: Convert to fraction form
   1,073.58/1,610.03 = 662.10/x
3. Step 3: Cross multiply
   1,073.58x = 1,610.03 × 662.10
4. Step 4: Simplify right side
   1,073.58x = 1,065,989.50
5. Step 5: Solve for x
   x = 1,065,989.50/1,073.58
6. Step 6: Final answer
   x = 992.93