Finding the Fourth Proportional to 2,520.28, 3,780.50 and 1,133.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.28 : 3,780.50 = 1,133.62 : x
2. Step 2: Convert to fraction form
   2,520.28/3,780.50 = 1,133.62/x
3. Step 3: Cross multiply
   2,520.28x = 3,780.50 × 1,133.62
4. Step 4: Simplify right side
   2,520.28x = 4,285,625.84
5. Step 5: Solve for x
   x = 4,285,625.84/2,520.28
6. Step 6: Final answer
   x = 1,700.46