Finding the Fourth Proportional to 2,223.72, 3,332.70 and 1,053

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.72 : 3,332.70 = 1,053 : x
2. Step 2: Convert to fraction form
   2,223.72/3,332.70 = 1,053/x
3. Step 3: Cross multiply
   2,223.72x = 3,332.70 × 1,053
4. Step 4: Simplify right side
   2,223.72x = 3,509,333.10
5. Step 5: Solve for x
   x = 3,509,333.10/2,223.72
6. Step 6: Final answer
   x = 1,578.14