Finding the Fourth Proportional to 2,528.06, 3,783.96 and 1,355.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,528.06 : 3,783.96 = 1,355.12 : x
2. Step 2: Convert to fraction form
   2,528.06/3,783.96 = 1,355.12/x
3. Step 3: Cross multiply
   2,528.06x = 3,783.96 × 1,355.12
4. Step 4: Simplify right side
   2,528.06x = 5,127,719.88
5. Step 5: Solve for x
   x = 5,127,719.88/2,528.06
6. Step 6: Final answer
   x = 2,028.32