Finding the Fourth Proportional to 1,499,571, 2,069,407.98 and 820,507.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,571 : 2,069,407.98 = 820,507.50 : x
2. Step 2: Convert to fraction form
   1,499,571/2,069,407.98 = 820,507.50/x
3. Step 3: Cross multiply
   1,499,571x = 2,069,407.98 × 820,507.50
4. Step 4: Simplify right side
   1,499,571x = 1,697,964,768,149.85
5. Step 5: Solve for x
   x = 1,697,964,768,149.85/1,499,571
6. Step 6: Final answer
   x = 1,132,300.35