Finding the Fourth Proportional to 2,809.58, 4,212.01 and 1,053.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,809.58 : 4,212.01 = 1,053.59 : x
2. Step 2: Convert to fraction form
   2,809.58/4,212.01 = 1,053.59/x
3. Step 3: Cross multiply
   2,809.58x = 4,212.01 × 1,053.59
4. Step 4: Simplify right side
   2,809.58x = 4,437,711.87
5. Step 5: Solve for x
   x = 4,437,711.87/2,809.58
6. Step 6: Final answer
   x = 1,579.50