Finding the Fourth Proportional to 1,856,404.09, 2,784,608.57 and 508,578.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,856,404.09 : 2,784,608.57 = 508,578.54 : x
2. Step 2: Convert to fraction form
   1,856,404.09/2,784,608.57 = 508,578.54/x
3. Step 3: Cross multiply
   1,856,404.09x = 2,784,608.57 × 508,578.54
4. Step 4: Simplify right side
   1,856,404.09x = 1,416,192,161,002.09
5. Step 5: Solve for x
   x = 1,416,192,161,002.09/1,856,404.09
6. Step 6: Final answer
   x = 762,868.48