Finding the Fourth Proportional to 2,167.50, 3,251.59 and 706.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,167.50 : 3,251.59 = 706.31 : x
2. Step 2: Convert to fraction form
   2,167.50/3,251.59 = 706.31/x
3. Step 3: Cross multiply
   2,167.50x = 3,251.59 × 706.31
4. Step 4: Simplify right side
   2,167.50x = 2,296,630.53
5. Step 5: Solve for x
   x = 2,296,630.53/2,167.50
6. Step 6: Final answer
   x = 1,059.58