Finding the Fourth Proportional to 1,323,926.10, 1,985,908.59 and 326,654.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,323,926.10 : 1,985,908.59 = 326,654.10 : x
2. Step 2: Convert to fraction form
   1,323,926.10/1,985,908.59 = 326,654.10/x
3. Step 3: Cross multiply
   1,323,926.10x = 1,985,908.59 × 326,654.10
4. Step 4: Simplify right side
   1,323,926.10x = 648,705,183,148.72
5. Step 5: Solve for x
   x = 648,705,183,148.72/1,323,926.10
6. Step 6: Final answer
   x = 489,985.95