Finding the Fourth Proportional to 1,105,456.05, 1,657,998.59 and 306,818.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105,456.05 : 1,657,998.59 = 306,818.73 : x
2. Step 2: Convert to fraction form
   1,105,456.05/1,657,998.59 = 306,818.73/x
3. Step 3: Cross multiply
   1,105,456.05x = 1,657,998.59 × 306,818.73
4. Step 4: Simplify right side
   1,105,456.05x = 508,705,020,191.50
5. Step 5: Solve for x
   x = 508,705,020,191.50/1,105,456.05
6. Step 6: Final answer
   x = 460,176.61