Finding the Fourth Proportional to 814,131.34, 1,122,766.20 and 508,235.92

Step by Step Solution

1. Step 1: Write the proportion equation
   814,131.34 : 1,122,766.20 = 508,235.92 : x
2. Step 2: Convert to fraction form
   814,131.34/1,122,766.20 = 508,235.92/x
3. Step 3: Cross multiply
   814,131.34x = 1,122,766.20 × 508,235.92
4. Step 4: Simplify right side
   814,131.34x = 570,630,112,601.90
5. Step 5: Solve for x
   x = 570,630,112,601.90/814,131.34
6. Step 6: Final answer
   x = 700,906.70