Finding the Fourth Proportional to 925,973.08, 1,389,209.20 and 386,049.89

Step by Step Solution

1. Step 1: Write the proportion equation
   925,973.08 : 1,389,209.20 = 386,049.89 : x
2. Step 2: Convert to fraction form
   925,973.08/1,389,209.20 = 386,049.89/x
3. Step 3: Cross multiply
   925,973.08x = 1,389,209.20 × 386,049.89
4. Step 4: Simplify right side
   925,973.08x = 536,304,061,354.89
5. Step 5: Solve for x
   x = 536,304,061,354.89/925,973.08
6. Step 6: Final answer
   x = 579,178.89