Finding the Fourth Proportional to 1,111.54, 1,666.98 and 462.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.54 : 1,666.98 = 462.12 : x
2. Step 2: Convert to fraction form
   1,111.54/1,666.98 = 462.12/x
3. Step 3: Cross multiply
   1,111.54x = 1,666.98 × 462.12
4. Step 4: Simplify right side
   1,111.54x = 770,344.80
5. Step 5: Solve for x
   x = 770,344.80/1,111.54
6. Step 6: Final answer
   x = 693.04