Finding the Fourth Proportional to 2,585.59, 3,875.55 and 1,123

Step by Step Solution

1. Step 1: Write the proportion equation
   2,585.59 : 3,875.55 = 1,123 : x
2. Step 2: Convert to fraction form
   2,585.59/3,875.55 = 1,123/x
3. Step 3: Cross multiply
   2,585.59x = 3,875.55 × 1,123
4. Step 4: Simplify right side
   2,585.59x = 4,352,242.65
5. Step 5: Solve for x
   x = 4,352,242.65/2,585.59
6. Step 6: Final answer
   x = 1,683.27