Finding the Fourth Proportional to 1,099,716.86, 1,649,170.69 and 379,875.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099,716.86 : 1,649,170.69 = 379,875.39 : x
2. Step 2: Convert to fraction form
   1,099,716.86/1,649,170.69 = 379,875.39/x
3. Step 3: Cross multiply
   1,099,716.86x = 1,649,170.69 × 379,875.39
4. Step 4: Simplify right side
   1,099,716.86x = 626,479,359,040.32
5. Step 5: Solve for x
   x = 626,479,359,040.32/1,099,716.86
6. Step 6: Final answer
   x = 569,673.32