Finding the Fourth Proportional to 2,723.30, 3,758.20 and 1,528.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,723.30 : 3,758.20 = 1,528.55 : x
2. Step 2: Convert to fraction form
   2,723.30/3,758.20 = 1,528.55/x
3. Step 3: Cross multiply
   2,723.30x = 3,758.20 × 1,528.55
4. Step 4: Simplify right side
   2,723.30x = 5,744,617.83
5. Step 5: Solve for x
   x = 5,744,617.83/2,723.30
6. Step 6: Final answer
   x = 2,109.43