Finding the Fourth Proportional to 1,426,196.22, 1,968,153.57 and 781,640.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426,196.22 : 1,968,153.57 = 781,640.34 : x
2. Step 2: Convert to fraction form
   1,426,196.22/1,968,153.57 = 781,640.34/x
3. Step 3: Cross multiply
   1,426,196.22x = 1,968,153.57 × 781,640.34
4. Step 4: Simplify right side
   1,426,196.22x = 1,538,388,225,627.01
5. Step 5: Solve for x
   x = 1,538,388,225,627.01/1,426,196.22
6. Step 6: Final answer
   x = 1,078,665.20