Finding the Fourth Proportional to 2,854.58, 4,282.59 and 1,123.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,854.58 : 4,282.59 = 1,123.34 : x
2. Step 2: Convert to fraction form
   2,854.58/4,282.59 = 1,123.34/x
3. Step 3: Cross multiply
   2,854.58x = 4,282.59 × 1,123.34
4. Step 4: Simplify right side
   2,854.58x = 4,810,804.65
5. Step 5: Solve for x
   x = 4,810,804.65/2,854.58
6. Step 6: Final answer
   x = 1,685.29