Finding the Fourth Proportional to 2,398,947.80, 3,596,672.10 and 978,272.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398,947.80 : 3,596,672.10 = 978,272.60 : x
2. Step 2: Convert to fraction form
   2,398,947.80/3,596,672.10 = 978,272.60/x
3. Step 3: Cross multiply
   2,398,947.80x = 3,596,672.10 × 978,272.60
4. Step 4: Simplify right side
   2,398,947.80x = 3,518,525,766,614.46
5. Step 5: Solve for x
   x = 3,518,525,766,614.46/2,398,947.80
6. Step 6: Final answer
   x = 1,466,695.43