Finding the Fourth Proportional to 2,371.56, 3,558.42 and 985.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,371.56 : 3,558.42 = 985.24 : x
2. Step 2: Convert to fraction form
   2,371.56/3,558.42 = 985.24/x
3. Step 3: Cross multiply
   2,371.56x = 3,558.42 × 985.24
4. Step 4: Simplify right side
   2,371.56x = 3,505,897.72
5. Step 5: Solve for x
   x = 3,505,897.72/2,371.56
6. Step 6: Final answer
   x = 1,478.31