Finding the Fourth Proportional to 1,499,727.12, 2,069,623.56 and 820,663.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,727.12 : 2,069,623.56 = 820,663.68 : x
2. Step 2: Convert to fraction form
   1,499,727.12/2,069,623.56 = 820,663.68/x
3. Step 3: Cross multiply
   1,499,727.12x = 2,069,623.56 × 820,663.68
4. Step 4: Simplify right side
   1,499,727.12x = 1,698,464,886,964.30
5. Step 5: Solve for x
   x = 1,698,464,886,964.30/1,499,727.12
6. Step 6: Final answer
   x = 1,132,515.95