Finding the Fourth Proportional to 2,127.09, 3,189.15 and 1,512.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,127.09 : 3,189.15 = 1,512.03 : x
2. Step 2: Convert to fraction form
   2,127.09/3,189.15 = 1,512.03/x
3. Step 3: Cross multiply
   2,127.09x = 3,189.15 × 1,512.03
4. Step 4: Simplify right side
   2,127.09x = 4,822,090.47
5. Step 5: Solve for x
   x = 4,822,090.47/2,127.09
6. Step 6: Final answer
   x = 2,266.99