Finding the Fourth Proportional to 2,890.52, 3,987.04 and 1,771.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,890.52 : 3,987.04 = 1,771.06 : x
2. Step 2: Convert to fraction form
   2,890.52/3,987.04 = 1,771.06/x
3. Step 3: Cross multiply
   2,890.52x = 3,987.04 × 1,771.06
4. Step 4: Simplify right side
   2,890.52x = 7,061,287.06
5. Step 5: Solve for x
   x = 7,061,287.06/2,890.52
6. Step 6: Final answer
   x = 2,442.91