Finding the Fourth Proportional to 1,475.89, 2,036.71 and 812.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,475.89 : 2,036.71 = 812.72 : x
2. Step 2: Convert to fraction form
   1,475.89/2,036.71 = 812.72/x
3. Step 3: Cross multiply
   1,475.89x = 2,036.71 × 812.72
4. Step 4: Simplify right side
   1,475.89x = 1,655,274.95
5. Step 5: Solve for x
   x = 1,655,274.95/1,475.89
6. Step 6: Final answer
   x = 1,121.54