Finding the Fourth Proportional to 2,209.96, 3,309.89 and 1,056.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,209.96 : 3,309.89 = 1,056.52 : x
2. Step 2: Convert to fraction form
   2,209.96/3,309.89 = 1,056.52/x
3. Step 3: Cross multiply
   2,209.96x = 3,309.89 × 1,056.52
4. Step 4: Simplify right side
   2,209.96x = 3,496,964.98
5. Step 5: Solve for x
   x = 3,496,964.98/2,209.96
6. Step 6: Final answer
   x = 1,582.37