Finding the Fourth Proportional to 1,068,116.72, 1,602,437.16 and 320,162

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068,116.72 : 1,602,437.16 = 320,162 : x
2. Step 2: Convert to fraction form
   1,068,116.72/1,602,437.16 = 320,162/x
3. Step 3: Cross multiply
   1,068,116.72x = 1,602,437.16 × 320,162
4. Step 4: Simplify right side
   1,068,116.72x = 513,039,486,019.92
5. Step 5: Solve for x
   x = 513,039,486,019.92/1,068,116.72
6. Step 6: Final answer
   x = 480,321.56