Finding the Fourth Proportional to 1,991.16, 2,748.18 and 1,194.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,991.16 : 2,748.18 = 1,194.54 : x
2. Step 2: Convert to fraction form
   1,991.16/2,748.18 = 1,194.54/x
3. Step 3: Cross multiply
   1,991.16x = 2,748.18 × 1,194.54
4. Step 4: Simplify right side
   1,991.16x = 3,282,810.94
5. Step 5: Solve for x
   x = 3,282,810.94/1,991.16
6. Step 6: Final answer
   x = 1,648.69