Finding the Fourth Proportional to 1,499,221.58, 2,068,942.12 and 820,143.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,221.58 : 2,068,942.12 = 820,143.50 : x
2. Step 2: Convert to fraction form
   1,499,221.58/2,068,942.12 = 820,143.50/x
3. Step 3: Cross multiply
   1,499,221.58x = 2,068,942.12 × 820,143.50
4. Step 4: Simplify right side
   1,499,221.58x = 1,696,829,431,594.22
5. Step 5: Solve for x
   x = 1,696,829,431,594.22/1,499,221.58
6. Step 6: Final answer
   x = 1,131,806.97