Finding the Fourth Proportional to 1,212, 1,826.25 and 1,079.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,212 : 1,826.25 = 1,079.39 : x
2. Step 2: Convert to fraction form
   1,212/1,826.25 = 1,079.39/x
3. Step 3: Cross multiply
   1,212x = 1,826.25 × 1,079.39
4. Step 4: Simplify right side
   1,212x = 1,971,226.86
5. Step 5: Solve for x
   x = 1,971,226.86/1,212
6. Step 6: Final answer
   x = 1,626.42