Finding the Fourth Proportional to 1,112.11, 1,667.85 and 462.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.11 : 1,667.85 = 462.69 : x
2. Step 2: Convert to fraction form
   1,112.11/1,667.85 = 462.69/x
3. Step 3: Cross multiply
   1,112.11x = 1,667.85 × 462.69
4. Step 4: Simplify right side
   1,112.11x = 771,697.52
5. Step 5: Solve for x
   x = 771,697.52/1,112.11
6. Step 6: Final answer
   x = 693.90