Finding the Fourth Proportional to 1,986.75, 2,741.72 and 1,102.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,986.75 : 2,741.72 = 1,102.69 : x
2. Step 2: Convert to fraction form
   1,986.75/2,741.72 = 1,102.69/x
3. Step 3: Cross multiply
   1,986.75x = 2,741.72 × 1,102.69
4. Step 4: Simplify right side
   1,986.75x = 3,023,267.23
5. Step 5: Solve for x
   x = 3,023,267.23/1,986.75
6. Step 6: Final answer
   x = 1,521.71