Finding the Fourth Proportional to 1,024,586.72, 1,536,953.89 and 393,500.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,024,586.72 : 1,536,953.89 = 393,500.53 : x
2. Step 2: Convert to fraction form
   1,024,586.72/1,536,953.89 = 393,500.53/x
3. Step 3: Cross multiply
   1,024,586.72x = 1,536,953.89 × 393,500.53
4. Step 4: Simplify right side
   1,024,586.72x = 604,792,171,975.82
5. Step 5: Solve for x
   x = 604,792,171,975.82/1,024,586.72
6. Step 6: Final answer
   x = 590,279.14