Finding the Fourth Proportional to 835,912.72, 1,253,705.86 and 267,141.25

Step by Step Solution

1. Step 1: Write the proportion equation
   835,912.72 : 1,253,705.86 = 267,141.25 : x
2. Step 2: Convert to fraction form
   835,912.72/1,253,705.86 = 267,141.25/x
3. Step 3: Cross multiply
   835,912.72x = 1,253,705.86 × 267,141.25
4. Step 4: Simplify right side
   835,912.72x = 334,916,550,572.73
5. Step 5: Solve for x
   x = 334,916,550,572.73/835,912.72
6. Step 6: Final answer
   x = 400,659.71