Finding the Fourth Proportional to 2,215.04, 3,055.74 and 1,283

Step by Step Solution

1. Step 1: Write the proportion equation
   2,215.04 : 3,055.74 = 1,283 : x
2. Step 2: Convert to fraction form
   2,215.04/3,055.74 = 1,283/x
3. Step 3: Cross multiply
   2,215.04x = 3,055.74 × 1,283
4. Step 4: Simplify right side
   2,215.04x = 3,920,514.42
5. Step 5: Solve for x
   x = 3,920,514.42/2,215.04
6. Step 6: Final answer
   x = 1,769.95