Finding the Fourth Proportional to 1,469.56, 2,026.88 and 879.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,469.56 : 2,026.88 = 879.34 : x
2. Step 2: Convert to fraction form
   1,469.56/2,026.88 = 879.34/x
3. Step 3: Cross multiply
   1,469.56x = 2,026.88 × 879.34
4. Step 4: Simplify right side
   1,469.56x = 1,782,316.66
5. Step 5: Solve for x
   x = 1,782,316.66/1,469.56
6. Step 6: Final answer
   x = 1,212.82