Finding the Fourth Proportional to 852,840, 1,177,022.88 and 495,144

Step by Step Solution

1. Step 1: Write the proportion equation
   852,840 : 1,177,022.88 = 495,144 : x
2. Step 2: Convert to fraction form
   852,840/1,177,022.88 = 495,144/x
3. Step 3: Cross multiply
   852,840x = 1,177,022.88 × 495,144
4. Step 4: Simplify right side
   852,840x = 582,795,816,894.72
5. Step 5: Solve for x
   x = 582,795,816,894.72/852,840
6. Step 6: Final answer
   x = 683,358.91