Finding the Fourth Proportional to 2,078.50, 3,118.23 and 710.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.50 : 3,118.23 = 710.50 : x
2. Step 2: Convert to fraction form
   2,078.50/3,118.23 = 710.50/x
3. Step 3: Cross multiply
   2,078.50x = 3,118.23 × 710.50
4. Step 4: Simplify right side
   2,078.50x = 2,215,502.42
5. Step 5: Solve for x
   x = 2,215,502.42/2,078.50
6. Step 6: Final answer
   x = 1,065.91