Finding the Fourth Proportional to 1,405.88, 1,941 and 1,258.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405.88 : 1,941 = 1,258.25 : x
2. Step 2: Convert to fraction form
   1,405.88/1,941 = 1,258.25/x
3. Step 3: Cross multiply
   1,405.88x = 1,941 × 1,258.25
4. Step 4: Simplify right side
   1,405.88x = 2,442,253.55
5. Step 5: Solve for x
   x = 2,442,253.55/1,405.88
6. Step 6: Final answer
   x = 1,737.18