Finding the Fourth Proportional to 2,585.52, 3,569.04 and 1,986.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,585.52 : 3,569.04 = 1,986.84 : x
2. Step 2: Convert to fraction form
   2,585.52/3,569.04 = 1,986.84/x
3. Step 3: Cross multiply
   2,585.52x = 3,569.04 × 1,986.84
4. Step 4: Simplify right side
   2,585.52x = 7,091,111.43
5. Step 5: Solve for x
   x = 7,091,111.43/2,585.52
6. Step 6: Final answer
   x = 2,742.62