Finding the Fourth Proportional to 2,392.68, 3,300.28 and 1,507.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,392.68 : 3,300.28 = 1,507.72 : x
2. Step 2: Convert to fraction form
   2,392.68/3,300.28 = 1,507.72/x
3. Step 3: Cross multiply
   2,392.68x = 3,300.28 × 1,507.72
4. Step 4: Simplify right side
   2,392.68x = 4,975,898.16
5. Step 5: Solve for x
   x = 4,975,898.16/2,392.68
6. Step 6: Final answer
   x = 2,079.63