Finding the Fourth Proportional to 1,991.18, 2,747.82 and 1,106.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,991.18 : 2,747.82 = 1,106.96 : x
2. Step 2: Convert to fraction form
   1,991.18/2,747.82 = 1,106.96/x
3. Step 3: Cross multiply
   1,991.18x = 2,747.82 × 1,106.96
4. Step 4: Simplify right side
   1,991.18x = 3,041,726.83
5. Step 5: Solve for x
   x = 3,041,726.83/1,991.18
6. Step 6: Final answer
   x = 1,527.60