Finding the Fourth Proportional to 2,893.20, 4,338.24 and 1,248.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,893.20 : 4,338.24 = 1,248.72 : x
2. Step 2: Convert to fraction form
   2,893.20/4,338.24 = 1,248.72/x
3. Step 3: Cross multiply
   2,893.20x = 4,338.24 × 1,248.72
4. Step 4: Simplify right side
   2,893.20x = 5,417,247.05
5. Step 5: Solve for x
   x = 5,417,247.05/2,893.20
6. Step 6: Final answer
   x = 1,872.41