Finding the Fourth Proportional to 1,065.72, 1,599.12 and 654.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065.72 : 1,599.12 = 654.96 : x
2. Step 2: Convert to fraction form
   1,065.72/1,599.12 = 654.96/x
3. Step 3: Cross multiply
   1,065.72x = 1,599.12 × 654.96
4. Step 4: Simplify right side
   1,065.72x = 1,047,359.64
5. Step 5: Solve for x
   x = 1,047,359.64/1,065.72
6. Step 6: Final answer
   x = 982.77