Finding the Fourth Proportional to 1,895.68, 2,838.72 and 1,278.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,895.68 : 2,838.72 = 1,278.72 : x
2. Step 2: Convert to fraction form
   1,895.68/2,838.72 = 1,278.72/x
3. Step 3: Cross multiply
   1,895.68x = 2,838.72 × 1,278.72
4. Step 4: Simplify right side
   1,895.68x = 3,629,928.04
5. Step 5: Solve for x
   x = 3,629,928.04/1,895.68
6. Step 6: Final answer
   x = 1,914.84