Finding the Fourth Proportional to 2,102,796.60, 3,150,566.10 and 978,559.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,102,796.60 : 3,150,566.10 = 978,559.80 : x
2. Step 2: Convert to fraction form
   2,102,796.60/3,150,566.10 = 978,559.80/x
3. Step 3: Cross multiply
   2,102,796.60x = 3,150,566.10 × 978,559.80
4. Step 4: Simplify right side
   2,102,796.60x = 3,083,017,332,702.78
5. Step 5: Solve for x
   x = 3,083,017,332,702.78/2,102,796.60
6. Step 6: Final answer
   x = 1,466,151.00