Finding the Fourth Proportional to 2,150.64, 3,226.56 and 1,111.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.64 : 3,226.56 = 1,111.02 : x
2. Step 2: Convert to fraction form
   2,150.64/3,226.56 = 1,111.02/x
3. Step 3: Cross multiply
   2,150.64x = 3,226.56 × 1,111.02
4. Step 4: Simplify right side
   2,150.64x = 3,584,772.69
5. Step 5: Solve for x
   x = 3,584,772.69/2,150.64
6. Step 6: Final answer
   x = 1,666.84