Finding the Fourth Proportional to 2,789.16, 4,179.42 and 1,761

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789.16 : 4,179.42 = 1,761 : x
2. Step 2: Convert to fraction form
   2,789.16/4,179.42 = 1,761/x
3. Step 3: Cross multiply
   2,789.16x = 4,179.42 × 1,761
4. Step 4: Simplify right side
   2,789.16x = 7,359,958.62
5. Step 5: Solve for x
   x = 7,359,958.62/2,789.16
6. Step 6: Final answer
   x = 2,638.77