Finding the Fourth Proportional to 2,878.36, 4,317.73 and 1,123.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,878.36 : 4,317.73 = 1,123.25 : x
2. Step 2: Convert to fraction form
   2,878.36/4,317.73 = 1,123.25/x
3. Step 3: Cross multiply
   2,878.36x = 4,317.73 × 1,123.25
4. Step 4: Simplify right side
   2,878.36x = 4,849,865.83
5. Step 5: Solve for x
   x = 4,849,865.83/2,878.36
6. Step 6: Final answer
   x = 1,684.94