Finding the Fourth Proportional to 1,499,221.08, 2,068,941.42 and 820,143

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,221.08 : 2,068,941.42 = 820,143 : x
2. Step 2: Convert to fraction form
   1,499,221.08/2,068,941.42 = 820,143/x
3. Step 3: Cross multiply
   1,499,221.08x = 2,068,941.42 × 820,143
4. Step 4: Simplify right side
   1,499,221.08x = 1,696,827,823,023.06
5. Step 5: Solve for x
   x = 1,696,827,823,023.06/1,499,221.08
6. Step 6: Final answer
   x = 1,131,806.27