Finding the Fourth Proportional to 540,591.56, 746,031.92 and 298,889.72

Step by Step Solution

1. Step 1: Write the proportion equation
   540,591.56 : 746,031.92 = 298,889.72 : x
2. Step 2: Convert to fraction form
   540,591.56/746,031.92 = 298,889.72/x
3. Step 3: Cross multiply
   540,591.56x = 746,031.92 × 298,889.72
4. Step 4: Simplify right side
   540,591.56x = 222,981,271,679.86
5. Step 5: Solve for x
   x = 222,981,271,679.86/540,591.56
6. Step 6: Final answer
   x = 412,476.42