Finding the Fourth Proportional to 1,988.27, 2,743.63 and 1,091.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,988.27 : 2,743.63 = 1,091.86 : x
2. Step 2: Convert to fraction form
   1,988.27/2,743.63 = 1,091.86/x
3. Step 3: Cross multiply
   1,988.27x = 2,743.63 × 1,091.86
4. Step 4: Simplify right side
   1,988.27x = 2,995,659.85
5. Step 5: Solve for x
   x = 2,995,659.85/1,988.27
6. Step 6: Final answer
   x = 1,506.67