Finding the Fourth Proportional to 1,986.01, 2,740.81 and 1,146.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,986.01 : 2,740.81 = 1,146.86 : x
2. Step 2: Convert to fraction form
   1,986.01/2,740.81 = 1,146.86/x
3. Step 3: Cross multiply
   1,986.01x = 2,740.81 × 1,146.86
4. Step 4: Simplify right side
   1,986.01x = 3,143,332.21
5. Step 5: Solve for x
   x = 3,143,332.21/1,986.01
6. Step 6: Final answer
   x = 1,582.74