Finding the Fourth Proportional to 2,948.25, 4,424.40 and 1,216.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,948.25 : 4,424.40 = 1,216.89 : x
2. Step 2: Convert to fraction form
   2,948.25/4,424.40 = 1,216.89/x
3. Step 3: Cross multiply
   2,948.25x = 4,424.40 × 1,216.89
4. Step 4: Simplify right side
   2,948.25x = 5,384,008.12
5. Step 5: Solve for x
   x = 5,384,008.12/2,948.25
6. Step 6: Final answer
   x = 1,826.17