Finding the Fourth Proportional to 540,157.89, 745,425.72 and 298,446.06

Step by Step Solution

1. Step 1: Write the proportion equation
   540,157.89 : 745,425.72 = 298,446.06 : x
2. Step 2: Convert to fraction form
   540,157.89/745,425.72 = 298,446.06/x
3. Step 3: Cross multiply
   540,157.89x = 745,425.72 × 298,446.06
4. Step 4: Simplify right side
   540,157.89x = 222,469,369,156.66
5. Step 5: Solve for x
   x = 222,469,369,156.66/540,157.89
6. Step 6: Final answer
   x = 411,859.89