Finding the Fourth Proportional to 1,425,775.25, 1,967,085.46 and 813,488.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,425,775.25 : 1,967,085.46 = 813,488.15 : x
2. Step 2: Convert to fraction form
   1,425,775.25/1,967,085.46 = 813,488.15/x
3. Step 3: Cross multiply
   1,425,775.25x = 1,967,085.46 × 813,488.15
4. Step 4: Simplify right side
   1,425,775.25x = 1,600,200,711,747.30
5. Step 5: Solve for x
   x = 1,600,200,711,747.30/1,425,775.25
6. Step 6: Final answer
   x = 1,122,337.28