Finding the Fourth Proportional to 2,412.76, 3,328.92 and 1,528.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,412.76 : 3,328.92 = 1,528.96 : x
2. Step 2: Convert to fraction form
   2,412.76/3,328.92 = 1,528.96/x
3. Step 3: Cross multiply
   2,412.76x = 3,328.92 × 1,528.96
4. Step 4: Simplify right side
   2,412.76x = 5,089,785.52
5. Step 5: Solve for x
   x = 5,089,785.52/2,412.76
6. Step 6: Final answer
   x = 2,109.53