Finding the Fourth Proportional to 2,215,118.75, 3,057,539.68 and 1,285,061.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,215,118.75 : 3,057,539.68 = 1,285,061.46 : x
2. Step 2: Convert to fraction form
   2,215,118.75/3,057,539.68 = 1,285,061.46/x
3. Step 3: Cross multiply
   2,215,118.75x = 3,057,539.68 × 1,285,061.46
4. Step 4: Simplify right side
   2,215,118.75x = 3,929,126,391,715.05
5. Step 5: Solve for x
   x = 3,929,126,391,715.05/2,215,118.75
6. Step 6: Final answer
   x = 1,773,776.87