Finding the Fourth Proportional to 3,781.63, 5,667.55 and 2,799.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,781.63 : 5,667.55 = 2,799.91 : x
2. Step 2: Convert to fraction form
   3,781.63/5,667.55 = 2,799.91/x
3. Step 3: Cross multiply
   3,781.63x = 5,667.55 × 2,799.91
4. Step 4: Simplify right side
   3,781.63x = 15,868,629.92
5. Step 5: Solve for x
   x = 15,868,629.92/3,781.63
6. Step 6: Final answer
   x = 4,196.24