Finding the Fourth Proportional to 2,528.72, 3,793.56 and 1,434.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,528.72 : 3,793.56 = 1,434.32 : x
2. Step 2: Convert to fraction form
   2,528.72/3,793.56 = 1,434.32/x
3. Step 3: Cross multiply
   2,528.72x = 3,793.56 × 1,434.32
4. Step 4: Simplify right side
   2,528.72x = 5,441,178.98
5. Step 5: Solve for x
   x = 5,441,178.98/2,528.72
6. Step 6: Final answer
   x = 2,151.75