Finding the Fourth Proportional to 1,068,966.42, 1,601,218.59 and 641,145.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068,966.42 : 1,601,218.59 = 641,145.48 : x
2. Step 2: Convert to fraction form
   1,068,966.42/1,601,218.59 = 641,145.48/x
3. Step 3: Cross multiply
   1,068,966.42x = 1,601,218.59 × 641,145.48
4. Step 4: Simplify right side
   1,068,966.42x = 1,026,614,061,470.47
5. Step 5: Solve for x
   x = 1,026,614,061,470.47/1,068,966.42
6. Step 6: Final answer
   x = 960,380.09