Finding the Fourth Proportional to 2,056.94, 2,838.86 and 1,172.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,056.94 : 2,838.86 = 1,172.82 : x
2. Step 2: Convert to fraction form
   2,056.94/2,838.86 = 1,172.82/x
3. Step 3: Cross multiply
   2,056.94x = 2,838.86 × 1,172.82
4. Step 4: Simplify right side
   2,056.94x = 3,329,471.79
5. Step 5: Solve for x
   x = 3,329,471.79/2,056.94
6. Step 6: Final answer
   x = 1,618.65