Finding the Fourth Proportional to 705,804.86, 1,058,111.83 and 306,144.74

Step by Step Solution

1. Step 1: Write the proportion equation
   705,804.86 : 1,058,111.83 = 306,144.74 : x
2. Step 2: Convert to fraction form
   705,804.86/1,058,111.83 = 306,144.74/x
3. Step 3: Cross multiply
   705,804.86x = 1,058,111.83 × 306,144.74
4. Step 4: Simplify right side
   705,804.86x = 323,935,371,086.27
5. Step 5: Solve for x
   x = 323,935,371,086.27/705,804.86
6. Step 6: Final answer
   x = 458,958.83