Finding the Fourth Proportional to 2,411.57, 3,611.58 and 1,238.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,411.57 : 3,611.58 = 1,238.49 : x
2. Step 2: Convert to fraction form
   2,411.57/3,611.58 = 1,238.49/x
3. Step 3: Cross multiply
   2,411.57x = 3,611.58 × 1,238.49
4. Step 4: Simplify right side
   2,411.57x = 4,472,905.71
5. Step 5: Solve for x
   x = 4,472,905.71/2,411.57
6. Step 6: Final answer
   x = 1,854.77