Finding the Fourth Proportional to 2,092.50, 3,139.20 and 705.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,092.50 : 3,139.20 = 705.87 : x
2. Step 2: Convert to fraction form
   2,092.50/3,139.20 = 705.87/x
3. Step 3: Cross multiply
   2,092.50x = 3,139.20 × 705.87
4. Step 4: Simplify right side
   2,092.50x = 2,215,867.10
5. Step 5: Solve for x
   x = 2,215,867.10/2,092.50
6. Step 6: Final answer
   x = 1,058.96