Finding the Fourth Proportional to 1,279.27, 1,764.01 and 1,112.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279.27 : 1,764.01 = 1,112.01 : x
2. Step 2: Convert to fraction form
   1,279.27/1,764.01 = 1,112.01/x
3. Step 3: Cross multiply
   1,279.27x = 1,764.01 × 1,112.01
4. Step 4: Simplify right side
   1,279.27x = 1,961,596.76
5. Step 5: Solve for x
   x = 1,961,596.76/1,279.27
6. Step 6: Final answer
   x = 1,533.37