Finding the Fourth Proportional to 1,665.86, 2,498.27 and 569.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.86 : 2,498.27 = 569.97 : x
2. Step 2: Convert to fraction form
   1,665.86/2,498.27 = 569.97/x
3. Step 3: Cross multiply
   1,665.86x = 2,498.27 × 569.97
4. Step 4: Simplify right side
   1,665.86x = 1,423,926.73
5. Step 5: Solve for x
   x = 1,423,926.73/1,665.86
6. Step 6: Final answer
   x = 854.77