Finding the Fourth Proportional to 1,072,117.69, 1,479,522.41 and 619,408.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,072,117.69 : 1,479,522.41 = 619,408.69 : x
2. Step 2: Convert to fraction form
   1,072,117.69/1,479,522.41 = 619,408.69/x
3. Step 3: Cross multiply
   1,072,117.69x = 1,479,522.41 × 619,408.69
4. Step 4: Simplify right side
   1,072,117.69x = 916,429,033,330.68
5. Step 5: Solve for x
   x = 916,429,033,330.68/1,072,117.69
6. Step 6: Final answer
   x = 854,783.99