Finding the Fourth Proportional to 1,830.58, 2,741.25 and 1,212.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,830.58 : 2,741.25 = 1,212.42 : x
2. Step 2: Convert to fraction form
   1,830.58/2,741.25 = 1,212.42/x
3. Step 3: Cross multiply
   1,830.58x = 2,741.25 × 1,212.42
4. Step 4: Simplify right side
   1,830.58x = 3,323,546.33
5. Step 5: Solve for x
   x = 3,323,546.33/1,830.58
6. Step 6: Final answer
   x = 1,815.57