Finding the Fourth Proportional to 1,986.74, 2,741.59 and 1,102.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,986.74 : 2,741.59 = 1,102.52 : x
2. Step 2: Convert to fraction form
   1,986.74/2,741.59 = 1,102.52/x
3. Step 3: Cross multiply
   1,986.74x = 2,741.59 × 1,102.52
4. Step 4: Simplify right side
   1,986.74x = 3,022,657.81
5. Step 5: Solve for x
   x = 3,022,657.81/1,986.74
6. Step 6: Final answer
   x = 1,521.42