Finding the Fourth Proportional to 2,100.01, 3,147.24 and 866.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.01 : 3,147.24 = 866.73 : x
2. Step 2: Convert to fraction form
   2,100.01/3,147.24 = 866.73/x
3. Step 3: Cross multiply
   2,100.01x = 3,147.24 × 866.73
4. Step 4: Simplify right side
   2,100.01x = 2,727,807.33
5. Step 5: Solve for x
   x = 2,727,807.33/2,100.01
6. Step 6: Final answer
   x = 1,298.95