Finding the Fourth Proportional to 1,665.42, 2,498.42 and 569.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.42 : 2,498.42 = 569.53 : x
2. Step 2: Convert to fraction form
   1,665.42/2,498.42 = 569.53/x
3. Step 3: Cross multiply
   1,665.42x = 2,498.42 × 569.53
4. Step 4: Simplify right side
   1,665.42x = 1,422,928.09
5. Step 5: Solve for x
   x = 1,422,928.09/1,665.42
6. Step 6: Final answer
   x = 854.39