Finding the Fourth Proportional to 2,371.71, 3,556.10 and 986.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,371.71 : 3,556.10 = 986.01 : x
2. Step 2: Convert to fraction form
   2,371.71/3,556.10 = 986.01/x
3. Step 3: Cross multiply
   2,371.71x = 3,556.10 × 986.01
4. Step 4: Simplify right side
   2,371.71x = 3,506,339.29
5. Step 5: Solve for x
   x = 3,506,339.29/2,371.71
6. Step 6: Final answer
   x = 1,478.40