Finding the Fourth Proportional to 893,977.31, 1,233,688.69 and 491,569.31

Step by Step Solution

1. Step 1: Write the proportion equation
   893,977.31 : 1,233,688.69 = 491,569.31 : x
2. Step 2: Convert to fraction form
   893,977.31/1,233,688.69 = 491,569.31/x
3. Step 3: Cross multiply
   893,977.31x = 1,233,688.69 × 491,569.31
4. Step 4: Simplify right side
   893,977.31x = 606,443,501,796.79
5. Step 5: Solve for x
   x = 606,443,501,796.79/893,977.31
6. Step 6: Final answer
   x = 678,365.65