Finding the Fourth Proportional to 1,111.34, 1,667.28 and 462.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.34 : 1,667.28 = 462.26 : x
2. Step 2: Convert to fraction form
   1,111.34/1,667.28 = 462.26/x
3. Step 3: Cross multiply
   1,111.34x = 1,667.28 × 462.26
4. Step 4: Simplify right side
   1,111.34x = 770,716.85
5. Step 5: Solve for x
   x = 770,716.85/1,111.34
6. Step 6: Final answer
   x = 693.50