Finding the Fourth Proportional to 2,240.33, 3,091.57 and 1,355.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,240.33 : 3,091.57 = 1,355.94 : x
2. Step 2: Convert to fraction form
   2,240.33/3,091.57 = 1,355.94/x
3. Step 3: Cross multiply
   2,240.33x = 3,091.57 × 1,355.94
4. Step 4: Simplify right side
   2,240.33x = 4,191,980.04
5. Step 5: Solve for x
   x = 4,191,980.04/2,240.33
6. Step 6: Final answer
   x = 1,871.15