Finding the Fourth Proportional to 1,528.57, 2,290.43 and 1,162.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,528.57 : 2,290.43 = 1,162.24 : x
2. Step 2: Convert to fraction form
   1,528.57/2,290.43 = 1,162.24/x
3. Step 3: Cross multiply
   1,528.57x = 2,290.43 × 1,162.24
4. Step 4: Simplify right side
   1,528.57x = 2,662,020.82
5. Step 5: Solve for x
   x = 2,662,020.82/1,528.57
6. Step 6: Final answer
   x = 1,741.52