Finding the Fourth Proportional to 1,474.31, 2,034.52 and 811.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,474.31 : 2,034.52 = 811.15 : x
2. Step 2: Convert to fraction form
   1,474.31/2,034.52 = 811.15/x
3. Step 3: Cross multiply
   1,474.31x = 2,034.52 × 811.15
4. Step 4: Simplify right side
   1,474.31x = 1,650,300.90
5. Step 5: Solve for x
   x = 1,650,300.90/1,474.31
6. Step 6: Final answer
   x = 1,119.37