Finding the Fourth Proportional to 1,499,641, 2,069,504.58 and 820,577.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,641 : 2,069,504.58 = 820,577.50 : x
2. Step 2: Convert to fraction form
   1,499,641/2,069,504.58 = 820,577.50/x
3. Step 3: Cross multiply
   1,499,641x = 2,069,504.58 × 820,577.50
4. Step 4: Simplify right side
   1,499,641x = 1,698,188,894,494.95
5. Step 5: Solve for x
   x = 1,698,188,894,494.95/1,499,641
6. Step 6: Final answer
   x = 1,132,396.95