Finding the Fourth Proportional to 2,111.83, 3,167.20 and 1,453.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.83 : 3,167.20 = 1,453.57 : x
2. Step 2: Convert to fraction form
   2,111.83/3,167.20 = 1,453.57/x
3. Step 3: Cross multiply
   2,111.83x = 3,167.20 × 1,453.57
4. Step 4: Simplify right side
   2,111.83x = 4,603,746.90
5. Step 5: Solve for x
   x = 4,603,746.90/2,111.83
6. Step 6: Final answer
   x = 2,179.98