Finding the Fourth Proportional to 1,566.71, 2,162.02 and 858.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,566.71 : 2,162.02 = 858.54 : x
2. Step 2: Convert to fraction form
   1,566.71/2,162.02 = 858.54/x
3. Step 3: Cross multiply
   1,566.71x = 2,162.02 × 858.54
4. Step 4: Simplify right side
   1,566.71x = 1,856,180.65
5. Step 5: Solve for x
   x = 1,856,180.65/1,566.71
6. Step 6: Final answer
   x = 1,184.76