Finding the Fourth Proportional to 3,519.02, 5,279.43 and 1,053.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,519.02 : 5,279.43 = 1,053.83 : x
2. Step 2: Convert to fraction form
   3,519.02/5,279.43 = 1,053.83/x
3. Step 3: Cross multiply
   3,519.02x = 5,279.43 × 1,053.83
4. Step 4: Simplify right side
   3,519.02x = 5,563,621.72
5. Step 5: Solve for x
   x = 5,563,621.72/3,519.02
6. Step 6: Final answer
   x = 1,581.01