Finding the Fourth Proportional to 869,598.66, 1,304,487.37 and 300,978.83

Step by Step Solution

1. Step 1: Write the proportion equation
   869,598.66 : 1,304,487.37 = 300,978.83 : x
2. Step 2: Convert to fraction form
   869,598.66/1,304,487.37 = 300,978.83/x
3. Step 3: Cross multiply
   869,598.66x = 1,304,487.37 × 300,978.83
4. Step 4: Simplify right side
   869,598.66x = 392,623,077,049.63
5. Step 5: Solve for x
   x = 392,623,077,049.63/869,598.66
6. Step 6: Final answer
   x = 451,499.18