Finding the Fourth Proportional to 2,184, 3,013.92 and 1,253.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,184 : 3,013.92 = 1,253.12 : x
2. Step 2: Convert to fraction form
   2,184/3,013.92 = 1,253.12/x
3. Step 3: Cross multiply
   2,184x = 3,013.92 × 1,253.12
4. Step 4: Simplify right side
   2,184x = 3,776,803.43
5. Step 5: Solve for x
   x = 3,776,803.43/2,184
6. Step 6: Final answer
   x = 1,729.31