Finding the Fourth Proportional to 2,111.46, 3,169.42 and 1,725.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.46 : 3,169.42 = 1,725.90 : x
2. Step 2: Convert to fraction form
   2,111.46/3,169.42 = 1,725.90/x
3. Step 3: Cross multiply
   2,111.46x = 3,169.42 × 1,725.90
4. Step 4: Simplify right side
   2,111.46x = 5,470,097.66
5. Step 5: Solve for x
   x = 5,470,097.66/2,111.46
6. Step 6: Final answer
   x = 2,590.67