Finding the Fourth Proportional to 1,579.43, 2,365.90 and 1,269.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,579.43 : 2,365.90 = 1,269.61 : x
2. Step 2: Convert to fraction form
   1,579.43/2,365.90 = 1,269.61/x
3. Step 3: Cross multiply
   1,579.43x = 2,365.90 × 1,269.61
4. Step 4: Simplify right side
   1,579.43x = 3,003,770.30
5. Step 5: Solve for x
   x = 3,003,770.30/1,579.43
6. Step 6: Final answer
   x = 1,901.81