Finding the Fourth Proportional to 1,068,114.72, 1,602,434.16 and 320,160

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068,114.72 : 1,602,434.16 = 320,160 : x
2. Step 2: Convert to fraction form
   1,068,114.72/1,602,434.16 = 320,160/x
3. Step 3: Cross multiply
   1,068,114.72x = 1,602,434.16 × 320,160
4. Step 4: Simplify right side
   1,068,114.72x = 513,035,320,665.60
5. Step 5: Solve for x
   x = 513,035,320,665.60/1,068,114.72
6. Step 6: Final answer
   x = 480,318.56