Finding the Fourth Proportional to 1,336,689.30, 1,843,684.02 and 820,469.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336,689.30 : 1,843,684.02 = 820,469.82 : x
2. Step 2: Convert to fraction form
   1,336,689.30/1,843,684.02 = 820,469.82/x
3. Step 3: Cross multiply
   1,336,689.30x = 1,843,684.02 × 820,469.82
4. Step 4: Simplify right side
   1,336,689.30x = 1,512,687,096,026.28
5. Step 5: Solve for x
   x = 1,512,687,096,026.28/1,336,689.30
6. Step 6: Final answer
   x = 1,131,666.94