Finding the Fourth Proportional to 2,092.46, 3,139.16 and 705.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,092.46 : 3,139.16 = 705.76 : x
2. Step 2: Convert to fraction form
   2,092.46/3,139.16 = 705.76/x
3. Step 3: Cross multiply
   2,092.46x = 3,139.16 × 705.76
4. Step 4: Simplify right side
   2,092.46x = 2,215,477.87
5. Step 5: Solve for x
   x = 2,215,477.87/2,092.46
6. Step 6: Final answer
   x = 1,058.79