Finding the Fourth Proportional to 2,191.15, 3,288.41 and 893.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.15 : 3,288.41 = 893.71 : x
2. Step 2: Convert to fraction form
   2,191.15/3,288.41 = 893.71/x
3. Step 3: Cross multiply
   2,191.15x = 3,288.41 × 893.71
4. Step 4: Simplify right side
   2,191.15x = 2,938,884.90
5. Step 5: Solve for x
   x = 2,938,884.90/2,191.15
6. Step 6: Final answer
   x = 1,341.25