Finding the Fourth Proportional to 1,441.35, 2,162.90 and 1,111.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,441.35 : 2,162.90 = 1,111.01 : x
2. Step 2: Convert to fraction form
   1,441.35/2,162.90 = 1,111.01/x
3. Step 3: Cross multiply
   1,441.35x = 2,162.90 × 1,111.01
4. Step 4: Simplify right side
   1,441.35x = 2,402,995.49
5. Step 5: Solve for x
   x = 2,402,995.49/1,441.35
6. Step 6: Final answer
   x = 1,667.18