Finding the Fourth Proportional to 940,697.96, 1,298,162.19 and 510,978.43

Step by Step Solution

1. Step 1: Write the proportion equation
   940,697.96 : 1,298,162.19 = 510,978.43 : x
2. Step 2: Convert to fraction form
   940,697.96/1,298,162.19 = 510,978.43/x
3. Step 3: Cross multiply
   940,697.96x = 1,298,162.19 × 510,978.43
4. Step 4: Simplify right side
   940,697.96x = 663,332,873,968.27
5. Step 5: Solve for x
   x = 663,332,873,968.27/940,697.96
6. Step 6: Final answer
   x = 705,149.69