Finding the Fourth Proportional to 940,806.72, 1,298,314.38 and 511,086.84

Step by Step Solution

1. Step 1: Write the proportion equation
   940,806.72 : 1,298,314.38 = 511,086.84 : x
2. Step 2: Convert to fraction form
   940,806.72/1,298,314.38 = 511,086.84/x
3. Step 3: Cross multiply
   940,806.72x = 1,298,314.38 × 511,086.84
4. Step 4: Simplify right side
   940,806.72x = 663,551,393,800.76
5. Step 5: Solve for x
   x = 663,551,393,800.76/940,806.72
6. Step 6: Final answer
   x = 705,300.44