Finding the Fourth Proportional to 3,760.01, 5,640.20 and 986.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,760.01 : 5,640.20 = 986.69 : x
2. Step 2: Convert to fraction form
   3,760.01/5,640.20 = 986.69/x
3. Step 3: Cross multiply
   3,760.01x = 5,640.20 × 986.69
4. Step 4: Simplify right side
   3,760.01x = 5,565,145.51
5. Step 5: Solve for x
   x = 5,565,145.51/3,760.01
6. Step 6: Final answer
   x = 1,480.09