Finding the Fourth Proportional to 1,475.31, 2,035.92 and 812.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,475.31 : 2,035.92 = 812.15 : x
2. Step 2: Convert to fraction form
   1,475.31/2,035.92 = 812.15/x
3. Step 3: Cross multiply
   1,475.31x = 2,035.92 × 812.15
4. Step 4: Simplify right side
   1,475.31x = 1,653,462.25
5. Step 5: Solve for x
   x = 1,653,462.25/1,475.31
6. Step 6: Final answer
   x = 1,120.76