Finding the Fourth Proportional to 3,581.51, 5,373.87 and 1,936.13

Step by Step Solution

1. Step 1: Write the proportion equation
   3,581.51 : 5,373.87 = 1,936.13 : x
2. Step 2: Convert to fraction form
   3,581.51/5,373.87 = 1,936.13/x
3. Step 3: Cross multiply
   3,581.51x = 5,373.87 × 1,936.13
4. Step 4: Simplify right side
   3,581.51x = 10,404,476.79
5. Step 5: Solve for x
   x = 10,404,476.79/3,581.51
6. Step 6: Final answer
   x = 2,905.06