Finding the Fourth Proportional to 2,119.32, 2,920.68 and 1,528.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,119.32 : 2,920.68 = 1,528.83 : x
2. Step 2: Convert to fraction form
   2,119.32/2,920.68 = 1,528.83/x
3. Step 3: Cross multiply
   2,119.32x = 2,920.68 × 1,528.83
4. Step 4: Simplify right side
   2,119.32x = 4,465,223.20
5. Step 5: Solve for x
   x = 4,465,223.20/2,119.32
6. Step 6: Final answer
   x = 2,106.91