Finding the Fourth Proportional to 2,167.33, 3,251.45 and 707.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,167.33 : 3,251.45 = 707.50 : x
2. Step 2: Convert to fraction form
   2,167.33/3,251.45 = 707.50/x
3. Step 3: Cross multiply
   2,167.33x = 3,251.45 × 707.50
4. Step 4: Simplify right side
   2,167.33x = 2,300,400.88
5. Step 5: Solve for x
   x = 2,300,400.88/2,167.33
6. Step 6: Final answer
   x = 1,061.40