Finding the Fourth Proportional to 2,066.55, 3,099.91 and 605.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.55 : 3,099.91 = 605.71 : x
2. Step 2: Convert to fraction form
   2,066.55/3,099.91 = 605.71/x
3. Step 3: Cross multiply
   2,066.55x = 3,099.91 × 605.71
4. Step 4: Simplify right side
   2,066.55x = 1,877,646.49
5. Step 5: Solve for x
   x = 1,877,646.49/2,066.55
6. Step 6: Final answer
   x = 908.59