Finding the Fourth Proportional to 1,948.81, 2,687.34 and 1,284.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,948.81 : 2,687.34 = 1,284.82 : x
2. Step 2: Convert to fraction form
   1,948.81/2,687.34 = 1,284.82/x
3. Step 3: Cross multiply
   1,948.81x = 2,687.34 × 1,284.82
4. Step 4: Simplify right side
   1,948.81x = 3,452,748.18
5. Step 5: Solve for x
   x = 3,452,748.18/1,948.81
6. Step 6: Final answer
   x = 1,771.72