Finding the Fourth Proportional to 2,371.99, 3,557.45 and 705.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,371.99 : 3,557.45 = 705.78 : x
2. Step 2: Convert to fraction form
   2,371.99/3,557.45 = 705.78/x
3. Step 3: Cross multiply
   2,371.99x = 3,557.45 × 705.78
4. Step 4: Simplify right side
   2,371.99x = 2,510,759.27
5. Step 5: Solve for x
   x = 2,510,759.27/2,371.99
6. Step 6: Final answer
   x = 1,058.50