Finding the Fourth Proportional to 3,890.16, 5,835.98 and 1,258.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,890.16 : 5,835.98 = 1,258.37 : x
2. Step 2: Convert to fraction form
   3,890.16/5,835.98 = 1,258.37/x
3. Step 3: Cross multiply
   3,890.16x = 5,835.98 × 1,258.37
4. Step 4: Simplify right side
   3,890.16x = 7,343,818.00
5. Step 5: Solve for x
   x = 7,343,818.00/3,890.16
6. Step 6: Final answer
   x = 1,887.79