Finding the Fourth Proportional to 2,788.27, 4,180.23 and 1,248.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,788.27 : 4,180.23 = 1,248.19 : x
2. Step 2: Convert to fraction form
   2,788.27/4,180.23 = 1,248.19/x
3. Step 3: Cross multiply
   2,788.27x = 4,180.23 × 1,248.19
4. Step 4: Simplify right side
   2,788.27x = 5,217,710.83
5. Step 5: Solve for x
   x = 5,217,710.83/2,788.27
6. Step 6: Final answer
   x = 1,871.31