Finding the Fourth Proportional to 1,460.72, 2,191.02 and 811.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,460.72 : 2,191.02 = 811.04 : x
2. Step 2: Convert to fraction form
   1,460.72/2,191.02 = 811.04/x
3. Step 3: Cross multiply
   1,460.72x = 2,191.02 × 811.04
4. Step 4: Simplify right side
   1,460.72x = 1,777,004.86
5. Step 5: Solve for x
   x = 1,777,004.86/1,460.72
6. Step 6: Final answer
   x = 1,216.53