Finding the Fourth Proportional to 2,098.50, 3,145.78 and 710.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.50 : 3,145.78 = 710.86 : x
2. Step 2: Convert to fraction form
   2,098.50/3,145.78 = 710.86/x
3. Step 3: Cross multiply
   2,098.50x = 3,145.78 × 710.86
4. Step 4: Simplify right side
   2,098.50x = 2,236,209.17
5. Step 5: Solve for x
   x = 2,236,209.17/2,098.50
6. Step 6: Final answer
   x = 1,065.62