Finding the Fourth Proportional to 1,894.56, 2,834.28 and 1,686.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,894.56 : 2,834.28 = 1,686.72 : x
2. Step 2: Convert to fraction form
   1,894.56/2,834.28 = 1,686.72/x
3. Step 3: Cross multiply
   1,894.56x = 2,834.28 × 1,686.72
4. Step 4: Simplify right side
   1,894.56x = 4,780,636.76
5. Step 5: Solve for x
   x = 4,780,636.76/1,894.56
6. Step 6: Final answer
   x = 2,523.35