Finding the Fourth Proportional to 1,429,205.50, 1,972,478.55 and 825,593.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429,205.50 : 1,972,478.55 = 825,593.50 : x
2. Step 2: Convert to fraction form
   1,429,205.50/1,972,478.55 = 825,593.50/x
3. Step 3: Cross multiply
   1,429,205.50x = 1,972,478.55 × 825,593.50
4. Step 4: Simplify right side
   1,429,205.50x = 1,628,465,469,769.43
5. Step 5: Solve for x
   x = 1,628,465,469,769.43/1,429,205.50
6. Step 6: Final answer
   x = 1,139,420.10