Finding the Fourth Proportional to 1,111.01, 1,667.52 and 801.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.01 : 1,667.52 = 801.41 : x
2. Step 2: Convert to fraction form
   1,111.01/1,667.52 = 801.41/x
3. Step 3: Cross multiply
   1,111.01x = 1,667.52 × 801.41
4. Step 4: Simplify right side
   1,111.01x = 1,336,358.87
5. Step 5: Solve for x
   x = 1,336,358.87/1,111.01
6. Step 6: Final answer
   x = 1,202.84