Finding the Fourth Proportional to 2,194.95, 3,293.79 and 1,155.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,194.95 : 3,293.79 = 1,155.72 : x
2. Step 2: Convert to fraction form
   2,194.95/3,293.79 = 1,155.72/x
3. Step 3: Cross multiply
   2,194.95x = 3,293.79 × 1,155.72
4. Step 4: Simplify right side
   2,194.95x = 3,806,698.98
5. Step 5: Solve for x
   x = 3,806,698.98/2,194.95
6. Step 6: Final answer
   x = 1,734.30