Finding the Fourth Proportional to 1,920.22, 2,649.94 and 1,069.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,920.22 : 2,649.94 = 1,069.54 : x
2. Step 2: Convert to fraction form
   1,920.22/2,649.94 = 1,069.54/x
3. Step 3: Cross multiply
   1,920.22x = 2,649.94 × 1,069.54
4. Step 4: Simplify right side
   1,920.22x = 2,834,216.83
5. Step 5: Solve for x
   x = 2,834,216.83/1,920.22
6. Step 6: Final answer
   x = 1,475.99