Finding the Fourth Proportional to 1,126,485.95, 1,693,271.86 and 978,568.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,126,485.95 : 1,693,271.86 = 978,568.20 : x
2. Step 2: Convert to fraction form
   1,126,485.95/1,693,271.86 = 978,568.20/x
3. Step 3: Cross multiply
   1,126,485.95x = 1,693,271.86 × 978,568.20
4. Step 4: Simplify right side
   1,126,485.95x = 1,656,981,996,150.85
5. Step 5: Solve for x
   x = 1,656,981,996,150.85/1,126,485.95
6. Step 6: Final answer
   x = 1,470,930.02