Finding the Fourth Proportional to 2,411.52, 3,329.98 and 1,528.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,411.52 : 3,329.98 = 1,528.90 : x
2. Step 2: Convert to fraction form
   2,411.52/3,329.98 = 1,528.90/x
3. Step 3: Cross multiply
   2,411.52x = 3,329.98 × 1,528.90
4. Step 4: Simplify right side
   2,411.52x = 5,091,206.42
5. Step 5: Solve for x
   x = 5,091,206.42/2,411.52
6. Step 6: Final answer
   x = 2,111.20