Finding the Fourth Proportional to 1,105,459.99, 1,525,524.91 and 622,015.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105,459.99 : 1,525,524.91 = 622,015.47 : x
2. Step 2: Convert to fraction form
   1,105,459.99/1,525,524.91 = 622,015.47/x
3. Step 3: Cross multiply
   1,105,459.99x = 1,525,524.91 × 622,015.47
4. Step 4: Simplify right side
   1,105,459.99x = 948,900,092,335.32
5. Step 5: Solve for x
   x = 948,900,092,335.32/1,105,459.99
6. Step 6: Final answer
   x = 858,375.79