Finding the Fourth Proportional to 1,057.77, 1,459.72 and 592.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,057.77 : 1,459.72 = 592.02 : x
2. Step 2: Convert to fraction form
   1,057.77/1,459.72 = 592.02/x
3. Step 3: Cross multiply
   1,057.77x = 1,459.72 × 592.02
4. Step 4: Simplify right side
   1,057.77x = 864,183.43
5. Step 5: Solve for x
   x = 864,183.43/1,057.77
6. Step 6: Final answer
   x = 816.99