Finding the Fourth Proportional to 2,867.34, 3,955.05 and 1,687.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,867.34 : 3,955.05 = 1,687.59 : x
2. Step 2: Convert to fraction form
   2,867.34/3,955.05 = 1,687.59/x
3. Step 3: Cross multiply
   2,867.34x = 3,955.05 × 1,687.59
4. Step 4: Simplify right side
   2,867.34x = 6,674,502.83
5. Step 5: Solve for x
   x = 6,674,502.83/2,867.34
6. Step 6: Final answer
   x = 2,327.77