Finding the Fourth Proportional to 1,864.67, 2,798.73 and 1,085.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,864.67 : 2,798.73 = 1,085.54 : x
2. Step 2: Convert to fraction form
   1,864.67/2,798.73 = 1,085.54/x
3. Step 3: Cross multiply
   1,864.67x = 2,798.73 × 1,085.54
4. Step 4: Simplify right side
   1,864.67x = 3,038,119.37
5. Step 5: Solve for x
   x = 3,038,119.37/1,864.67
6. Step 6: Final answer
   x = 1,629.31