Finding the Fourth Proportional to 861,725.52, 1,293,178.86 and 300,760.02

Step by Step Solution

1. Step 1: Write the proportion equation
   861,725.52 : 1,293,178.86 = 300,760.02 : x
2. Step 2: Convert to fraction form
   861,725.52/1,293,178.86 = 300,760.02/x
3. Step 3: Cross multiply
   861,725.52x = 1,293,178.86 × 300,760.02
4. Step 4: Simplify right side
   861,725.52x = 388,936,499,797.18
5. Step 5: Solve for x
   x = 388,936,499,797.18/861,725.52
6. Step 6: Final answer
   x = 451,346.15