Finding the Fourth Proportional to 3,785.43, 5,676.53 and 1,319.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,785.43 : 5,676.53 = 1,319.52 : x
2. Step 2: Convert to fraction form
   3,785.43/5,676.53 = 1,319.52/x
3. Step 3: Cross multiply
   3,785.43x = 5,676.53 × 1,319.52
4. Step 4: Simplify right side
   3,785.43x = 7,490,288.27
5. Step 5: Solve for x
   x = 7,490,288.27/3,785.43
6. Step 6: Final answer
   x = 1,978.72