Finding the Fourth Proportional to 1,525,007.86, 2,285,915.58 and 513,780.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,525,007.86 : 2,285,915.58 = 513,780.37 : x
2. Step 2: Convert to fraction form
   1,525,007.86/2,285,915.58 = 513,780.37/x
3. Step 3: Cross multiply
   1,525,007.86x = 2,285,915.58 × 513,780.37
4. Step 4: Simplify right side
   1,525,007.86x = 1,174,458,546,766.38
5. Step 5: Solve for x
   x = 1,174,458,546,766.38/1,525,007.86
6. Step 6: Final answer
   x = 770,132.78