Finding the Fourth Proportional to 1,499,405.20, 2,069,228.52 and 820,326.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,405.20 : 2,069,228.52 = 820,326.16 : x
2. Step 2: Convert to fraction form
   1,499,405.20/2,069,228.52 = 820,326.16/x
3. Step 3: Cross multiply
   1,499,405.20x = 2,069,228.52 × 820,326.16
4. Step 4: Simplify right side
   1,499,405.20x = 1,697,442,285,974.08
5. Step 5: Solve for x
   x = 1,697,442,285,974.08/1,499,405.20
6. Step 6: Final answer
   x = 1,132,077.10