Finding the Fourth Proportional to 1,111.76, 1,668.06 and 462.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.76 : 1,668.06 = 462.32 : x
2. Step 2: Convert to fraction form
   1,111.76/1,668.06 = 462.32/x
3. Step 3: Cross multiply
   1,111.76x = 1,668.06 × 462.32
4. Step 4: Simplify right side
   1,111.76x = 771,169.16
5. Step 5: Solve for x
   x = 771,169.16/1,111.76
6. Step 6: Final answer
   x = 693.65