Finding the Fourth Proportional to 1,061.80, 1,593.69 and 599.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.80 : 1,593.69 = 599.50 : x
2. Step 2: Convert to fraction form
   1,061.80/1,593.69 = 599.50/x
3. Step 3: Cross multiply
   1,061.80x = 1,593.69 × 599.50
4. Step 4: Simplify right side
   1,061.80x = 955,417.16
5. Step 5: Solve for x
   x = 955,417.16/1,061.80
6. Step 6: Final answer
   x = 899.81