Finding the Fourth Proportional to 2,223.72, 3,335.03 and 1,053.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.72 : 3,335.03 = 1,053.42 : x
2. Step 2: Convert to fraction form
   2,223.72/3,335.03 = 1,053.42/x
3. Step 3: Cross multiply
   2,223.72x = 3,335.03 × 1,053.42
4. Step 4: Simplify right side
   2,223.72x = 3,513,182.04
5. Step 5: Solve for x
   x = 3,513,182.04/2,223.72
6. Step 6: Final answer
   x = 1,579.87