Finding the Fourth Proportional to 1,066.30, 1,596.72 and 654.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.30 : 1,596.72 = 654.19 : x
2. Step 2: Convert to fraction form
   1,066.30/1,596.72 = 654.19/x
3. Step 3: Cross multiply
   1,066.30x = 1,596.72 × 654.19
4. Step 4: Simplify right side
   1,066.30x = 1,044,558.26
5. Step 5: Solve for x
   x = 1,044,558.26/1,066.30
6. Step 6: Final answer
   x = 979.61