Finding the Fourth Proportional to 1,460.72, 2,191.18 and 487.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,460.72 : 2,191.18 = 487.50 : x
2. Step 2: Convert to fraction form
   1,460.72/2,191.18 = 487.50/x
3. Step 3: Cross multiply
   1,460.72x = 2,191.18 × 487.50
4. Step 4: Simplify right side
   1,460.72x = 1,068,200.25
5. Step 5: Solve for x
   x = 1,068,200.25/1,460.72
6. Step 6: Final answer
   x = 731.28