Finding the Fourth Proportional to 2,217.38, 3,325.40 and 1,046.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,217.38 : 3,325.40 = 1,046.72 : x
2. Step 2: Convert to fraction form
   2,217.38/3,325.40 = 1,046.72/x
3. Step 3: Cross multiply
   2,217.38x = 3,325.40 × 1,046.72
4. Step 4: Simplify right side
   2,217.38x = 3,480,775.58
5. Step 5: Solve for x
   x = 3,480,775.58/2,217.38
6. Step 6: Final answer
   x = 1,569.77