Finding the Fourth Proportional to 2,890.23, 4,337.78 and 1,248.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,890.23 : 4,337.78 = 1,248.03 : x
2. Step 2: Convert to fraction form
   2,890.23/4,337.78 = 1,248.03/x
3. Step 3: Cross multiply
   2,890.23x = 4,337.78 × 1,248.03
4. Step 4: Simplify right side
   2,890.23x = 5,413,673.33
5. Step 5: Solve for x
   x = 5,413,673.33/2,890.23
6. Step 6: Final answer
   x = 1,873.09