Finding the Fourth Proportional to 1,986.06, 2,742.84 and 1,506.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,986.06 : 2,742.84 = 1,506.72 : x
2. Step 2: Convert to fraction form
   1,986.06/2,742.84 = 1,506.72/x
3. Step 3: Cross multiply
   1,986.06x = 2,742.84 × 1,506.72
4. Step 4: Simplify right side
   1,986.06x = 4,132,691.88
5. Step 5: Solve for x
   x = 4,132,691.88/1,986.06
6. Step 6: Final answer
   x = 2,080.85