Finding the Fourth Proportional to 3,884.56, 5,826.94 and 1,287.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,884.56 : 5,826.94 = 1,287.52 : x
2. Step 2: Convert to fraction form
   3,884.56/5,826.94 = 1,287.52/x
3. Step 3: Cross multiply
   3,884.56x = 5,826.94 × 1,287.52
4. Step 4: Simplify right side
   3,884.56x = 7,502,301.79
5. Step 5: Solve for x
   x = 7,502,301.79/3,884.56
6. Step 6: Final answer
   x = 1,931.31