Finding the Fourth Proportional to 940,851.89, 1,298,384.71 and 511,135.10

Step by Step Solution

1. Step 1: Write the proportion equation
   940,851.89 : 1,298,384.71 = 511,135.10 : x
2. Step 2: Convert to fraction form
   940,851.89/1,298,384.71 = 511,135.10/x
3. Step 3: Cross multiply
   940,851.89x = 1,298,384.71 × 511,135.10
4. Step 4: Simplify right side
   940,851.89x = 663,649,998,584.32
5. Step 5: Solve for x
   x = 663,649,998,584.32/940,851.89
6. Step 6: Final answer
   x = 705,371.38