Finding the Fourth Proportional to 789,982.48, 1,185,096.60 and 257,379.52

Step by Step Solution

1. Step 1: Write the proportion equation
   789,982.48 : 1,185,096.60 = 257,379.52 : x
2. Step 2: Convert to fraction form
   789,982.48/1,185,096.60 = 257,379.52/x
3. Step 3: Cross multiply
   789,982.48x = 1,185,096.60 × 257,379.52
4. Step 4: Simplify right side
   789,982.48x = 305,019,594,061.63
5. Step 5: Solve for x
   x = 305,019,594,061.63/789,982.48
6. Step 6: Final answer
   x = 386,109.31