Finding the Fourth Proportional to 1,499,573.28, 2,069,408.88 and 820,509.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,573.28 : 2,069,408.88 = 820,509.60 : x
2. Step 2: Convert to fraction form
   1,499,573.28/2,069,408.88 = 820,509.60/x
3. Step 3: Cross multiply
   1,499,573.28x = 2,069,408.88 × 820,509.60
4. Step 4: Simplify right side
   1,499,573.28x = 1,697,969,852,365.25
5. Step 5: Solve for x
   x = 1,697,969,852,365.25/1,499,573.28
6. Step 6: Final answer
   x = 1,132,302.02