Finding the Fourth Proportional to 1,053.00, 1,572.83 and 819.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.00 : 1,572.83 = 819.46 : x
2. Step 2: Convert to fraction form
   1,053.00/1,572.83 = 819.46/x
3. Step 3: Cross multiply
   1,053.00x = 1,572.83 × 819.46
4. Step 4: Simplify right side
   1,053.00x = 1,288,859.31
5. Step 5: Solve for x
   x = 1,288,859.31/1,053.00
6. Step 6: Final answer
   x = 1,223.99