Finding the Fourth Proportional to 3,789.15, 5,679.27 and 1,706.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,789.15 : 5,679.27 = 1,706.72 : x
2. Step 2: Convert to fraction form
   3,789.15/5,679.27 = 1,706.72/x
3. Step 3: Cross multiply
   3,789.15x = 5,679.27 × 1,706.72
4. Step 4: Simplify right side
   3,789.15x = 9,692,895.30
5. Step 5: Solve for x
   x = 9,692,895.30/3,789.15
6. Step 6: Final answer
   x = 2,558.07