Finding the Fourth Proportional to 3,111.21, 4,667.04 and 1,237.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.21 : 4,667.04 = 1,237.83 : x
2. Step 2: Convert to fraction form
   3,111.21/4,667.04 = 1,237.83/x
3. Step 3: Cross multiply
   3,111.21x = 4,667.04 × 1,237.83
4. Step 4: Simplify right side
   3,111.21x = 5,777,002.12
5. Step 5: Solve for x
   x = 5,777,002.12/3,111.21
6. Step 6: Final answer
   x = 1,856.83