Finding the Fourth Proportional to 5,615.42, 8,422.83 and 1,719.83

Step by Step Solution

1. Step 1: Write the proportion equation
   5,615.42 : 8,422.83 = 1,719.83 : x
2. Step 2: Convert to fraction form
   5,615.42/8,422.83 = 1,719.83/x
3. Step 3: Cross multiply
   5,615.42x = 8,422.83 × 1,719.83
4. Step 4: Simplify right side
   5,615.42x = 14,485,835.72
5. Step 5: Solve for x
   x = 14,485,835.72/5,615.42
6. Step 6: Final answer
   x = 2,579.65