Finding the Fourth Proportional to 2,269.80, 3,132.55 and 1,525.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.80 : 3,132.55 = 1,525.31 : x
2. Step 2: Convert to fraction form
   2,269.80/3,132.55 = 1,525.31/x
3. Step 3: Cross multiply
   2,269.80x = 3,132.55 × 1,525.31
4. Step 4: Simplify right side
   2,269.80x = 4,778,086.55
5. Step 5: Solve for x
   x = 4,778,086.55/2,269.80
6. Step 6: Final answer
   x = 2,105.07