Finding the Fourth Proportional to 719,320.72, 992,514.41 and 413,337.98

Step by Step Solution

1. Step 1: Write the proportion equation
   719,320.72 : 992,514.41 = 413,337.98 : x
2. Step 2: Convert to fraction form
   719,320.72/992,514.41 = 413,337.98/x
3. Step 3: Cross multiply
   719,320.72x = 992,514.41 × 413,337.98
4. Step 4: Simplify right side
   719,320.72x = 410,243,901,764.89
5. Step 5: Solve for x
   x = 410,243,901,764.89/719,320.72
6. Step 6: Final answer
   x = 570,321.27