Finding the Fourth Proportional to 1,499,635, 2,069,496.30 and 820,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,635 : 2,069,496.30 = 820,571.50 : x
2. Step 2: Convert to fraction form
   1,499,635/2,069,496.30 = 820,571.50/x
3. Step 3: Cross multiply
   1,499,635x = 2,069,496.30 × 820,571.50
4. Step 4: Simplify right side
   1,499,635x = 1,698,169,683,135.45
5. Step 5: Solve for x
   x = 1,698,169,683,135.45/1,499,635
6. Step 6: Final answer
   x = 1,132,388.67