Finding the Fourth Proportional to 1,258.05, 1,876.82 and 1,225.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,258.05 : 1,876.82 = 1,225.83 : x
2. Step 2: Convert to fraction form
   1,258.05/1,876.82 = 1,225.83/x
3. Step 3: Cross multiply
   1,258.05x = 1,876.82 × 1,225.83
4. Step 4: Simplify right side
   1,258.05x = 2,300,662.26
5. Step 5: Solve for x
   x = 2,300,662.26/1,258.05
6. Step 6: Final answer
   x = 1,828.75