Finding the Fourth Proportional to 879,783, 1,214,100.54 and 477,375

Step by Step Solution

1. Step 1: Write the proportion equation
   879,783 : 1,214,100.54 = 477,375 : x
2. Step 2: Convert to fraction form
   879,783/1,214,100.54 = 477,375/x
3. Step 3: Cross multiply
   879,783x = 1,214,100.54 × 477,375
4. Step 4: Simplify right side
   879,783x = 579,581,245,282.50
5. Step 5: Solve for x
   x = 579,581,245,282.50/879,783
6. Step 6: Final answer
   x = 658,777.50