Finding the Fourth Proportional to 2,116,738.68, 3,174,629.60 and 978,877.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,738.68 : 3,174,629.60 = 978,877.82 : x
2. Step 2: Convert to fraction form
   2,116,738.68/3,174,629.60 = 978,877.82/x
3. Step 3: Cross multiply
   2,116,738.68x = 3,174,629.60 × 978,877.82
4. Step 4: Simplify right side
   2,116,738.68x = 3,107,574,502,155.47
5. Step 5: Solve for x
   x = 3,107,574,502,155.47/2,116,738.68
6. Step 6: Final answer
   x = 1,468,095.49