Finding the Fourth Proportional to 1,864.82, 2,570.28 and 1,274.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,864.82 : 2,570.28 = 1,274.33 : x
2. Step 2: Convert to fraction form
   1,864.82/2,570.28 = 1,274.33/x
3. Step 3: Cross multiply
   1,864.82x = 2,570.28 × 1,274.33
4. Step 4: Simplify right side
   1,864.82x = 3,275,384.91
5. Step 5: Solve for x
   x = 3,275,384.91/1,864.82
6. Step 6: Final answer
   x = 1,756.41