Finding the Fourth Proportional to 3,781.51, 5,666.72 and 1,904.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,781.51 : 5,666.72 = 1,904.83 : x
2. Step 2: Convert to fraction form
   3,781.51/5,666.72 = 1,904.83/x
3. Step 3: Cross multiply
   3,781.51x = 5,666.72 × 1,904.83
4. Step 4: Simplify right side
   3,781.51x = 10,794,138.26
5. Step 5: Solve for x
   x = 10,794,138.26/3,781.51
6. Step 6: Final answer
   x = 2,854.45