Finding the Fourth Proportional to 1,662.78, 2,494.86 and 566.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.78 : 2,494.86 = 566.55 : x
2. Step 2: Convert to fraction form
   1,662.78/2,494.86 = 566.55/x
3. Step 3: Cross multiply
   1,662.78x = 2,494.86 × 566.55
4. Step 4: Simplify right side
   1,662.78x = 1,413,462.93
5. Step 5: Solve for x
   x = 1,413,462.93/1,662.78
6. Step 6: Final answer
   x = 850.06