Finding the Fourth Proportional to 2,127.30, 3,186.31 and 1,029.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,127.30 : 3,186.31 = 1,029.34 : x
2. Step 2: Convert to fraction form
   2,127.30/3,186.31 = 1,029.34/x
3. Step 3: Cross multiply
   2,127.30x = 3,186.31 × 1,029.34
4. Step 4: Simplify right side
   2,127.30x = 3,279,796.34
5. Step 5: Solve for x
   x = 3,279,796.34/2,127.30
6. Step 6: Final answer
   x = 1,541.76