Finding the Fourth Proportional to 1,986.98, 2,742.04 and 1,102.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,986.98 : 2,742.04 = 1,102.82 : x
2. Step 2: Convert to fraction form
   1,986.98/2,742.04 = 1,102.82/x
3. Step 3: Cross multiply
   1,986.98x = 2,742.04 × 1,102.82
4. Step 4: Simplify right side
   1,986.98x = 3,023,976.55
5. Step 5: Solve for x
   x = 3,023,976.55/1,986.98
6. Step 6: Final answer
   x = 1,521.90