Finding the Fourth Proportional to 3,724.76, 5,587.86 and 1,259.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,724.76 : 5,587.86 = 1,259.98 : x
2. Step 2: Convert to fraction form
   3,724.76/5,587.86 = 1,259.98/x
3. Step 3: Cross multiply
   3,724.76x = 5,587.86 × 1,259.98
4. Step 4: Simplify right side
   3,724.76x = 7,040,577.87
5. Step 5: Solve for x
   x = 7,040,577.87/3,724.76
6. Step 6: Final answer
   x = 1,890.21