Finding the Fourth Proportional to 1,111.10, 1,667.25 and 461.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.10 : 1,667.25 = 461.88 : x
2. Step 2: Convert to fraction form
   1,111.10/1,667.25 = 461.88/x
3. Step 3: Cross multiply
   1,111.10x = 1,667.25 × 461.88
4. Step 4: Simplify right side
   1,111.10x = 770,069.43
5. Step 5: Solve for x
   x = 770,069.43/1,111.10
6. Step 6: Final answer
   x = 693.07