Finding the Fourth Proportional to 2,298.04, 3,443.09 and 1,258.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.04 : 3,443.09 = 1,258.78 : x
2. Step 2: Convert to fraction form
   2,298.04/3,443.09 = 1,258.78/x
3. Step 3: Cross multiply
   2,298.04x = 3,443.09 × 1,258.78
4. Step 4: Simplify right side
   2,298.04x = 4,334,092.83
5. Step 5: Solve for x
   x = 4,334,092.83/2,298.04
6. Step 6: Final answer
   x = 1,886.00