Finding the Fourth Proportional to 1,284,386.83, 1,926,196.15 and 805,342.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,284,386.83 : 1,926,196.15 = 805,342.25 : x
2. Step 2: Convert to fraction form
   1,284,386.83/1,926,196.15 = 805,342.25/x
3. Step 3: Cross multiply
   1,284,386.83x = 1,926,196.15 × 805,342.25
4. Step 4: Simplify right side
   1,284,386.83x = 1,551,247,134,859.64
5. Step 5: Solve for x
   x = 1,551,247,134,859.64/1,284,386.83
6. Step 6: Final answer
   x = 1,207,772.54