Finding the Fourth Proportional to 1,870.71, 2,581.97 and 1,241.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.71 : 2,581.97 = 1,241.28 : x
2. Step 2: Convert to fraction form
   1,870.71/2,581.97 = 1,241.28/x
3. Step 3: Cross multiply
   1,870.71x = 2,581.97 × 1,241.28
4. Step 4: Simplify right side
   1,870.71x = 3,204,941.52
5. Step 5: Solve for x
   x = 3,204,941.52/1,870.71
6. Step 6: Final answer
   x = 1,713.22