Finding the Fourth Proportional to 2,061.08, 3,090.90 and 599.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.08 : 3,090.90 = 599.80 : x
2. Step 2: Convert to fraction form
   2,061.08/3,090.90 = 599.80/x
3. Step 3: Cross multiply
   2,061.08x = 3,090.90 × 599.80
4. Step 4: Simplify right side
   2,061.08x = 1,853,921.82
5. Step 5: Solve for x
   x = 1,853,921.82/2,061.08
6. Step 6: Final answer
   x = 899.49