Finding the Fourth Proportional to 2,201.94, 3,038.61 and 1,317.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,201.94 : 3,038.61 = 1,317.57 : x
2. Step 2: Convert to fraction form
   2,201.94/3,038.61 = 1,317.57/x
3. Step 3: Cross multiply
   2,201.94x = 3,038.61 × 1,317.57
4. Step 4: Simplify right side
   2,201.94x = 4,003,581.38
5. Step 5: Solve for x
   x = 4,003,581.38/2,201.94
6. Step 6: Final answer
   x = 1,818.21