Finding the Fourth Proportional to 2,581.74, 3,871.94 and 937.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.74 : 3,871.94 = 937.98 : x
2. Step 2: Convert to fraction form
   2,581.74/3,871.94 = 937.98/x
3. Step 3: Cross multiply
   2,581.74x = 3,871.94 × 937.98
4. Step 4: Simplify right side
   2,581.74x = 3,631,797.59
5. Step 5: Solve for x
   x = 3,631,797.59/2,581.74
6. Step 6: Final answer
   x = 1,406.72