Finding the Fourth Proportional to 1,254.96, 1,731.24 and 812.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,254.96 : 1,731.24 = 812.52 : x
2. Step 2: Convert to fraction form
   1,254.96/1,731.24 = 812.52/x
3. Step 3: Cross multiply
   1,254.96x = 1,731.24 × 812.52
4. Step 4: Simplify right side
   1,254.96x = 1,406,667.12
5. Step 5: Solve for x
   x = 1,406,667.12/1,254.96
6. Step 6: Final answer
   x = 1,120.89