Finding the Fourth Proportional to 1,698.31, 2,544.27 and 874.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,698.31 : 2,544.27 = 874.54 : x
2. Step 2: Convert to fraction form
   1,698.31/2,544.27 = 874.54/x
3. Step 3: Cross multiply
   1,698.31x = 2,544.27 × 874.54
4. Step 4: Simplify right side
   1,698.31x = 2,225,065.89
5. Step 5: Solve for x
   x = 2,225,065.89/1,698.31
6. Step 6: Final answer
   x = 1,310.16