Finding the Fourth Proportional to 2,223.60, 3,332.56 and 1,053.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.60 : 3,332.56 = 1,053.60 : x
2. Step 2: Convert to fraction form
   2,223.60/3,332.56 = 1,053.60/x
3. Step 3: Cross multiply
   2,223.60x = 3,332.56 × 1,053.60
4. Step 4: Simplify right side
   2,223.60x = 3,511,185.22
5. Step 5: Solve for x
   x = 3,511,185.22/2,223.60
6. Step 6: Final answer
   x = 1,579.05