Finding the Fourth Proportional to 1,986.52, 2,978.81 and 599.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,986.52 : 2,978.81 = 599.59 : x
2. Step 2: Convert to fraction form
   1,986.52/2,978.81 = 599.59/x
3. Step 3: Cross multiply
   1,986.52x = 2,978.81 × 599.59
4. Step 4: Simplify right side
   1,986.52x = 1,786,061.69
5. Step 5: Solve for x
   x = 1,786,061.69/1,986.52
6. Step 6: Final answer
   x = 899.09