Finding the Fourth Proportional to 2,191.57, 3,285.64 and 1,095.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.57 : 3,285.64 = 1,095.37 : x
2. Step 2: Convert to fraction form
   2,191.57/3,285.64 = 1,095.37/x
3. Step 3: Cross multiply
   2,191.57x = 3,285.64 × 1,095.37
4. Step 4: Simplify right side
   2,191.57x = 3,598,969.58
5. Step 5: Solve for x
   x = 3,598,969.58/2,191.57
6. Step 6: Final answer
   x = 1,642.19