Finding the Fourth Proportional to 2,165.58, 2,989.94 and 1,667.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,165.58 : 2,989.94 = 1,667.34 : x
2. Step 2: Convert to fraction form
   2,165.58/2,989.94 = 1,667.34/x
3. Step 3: Cross multiply
   2,165.58x = 2,989.94 × 1,667.34
4. Step 4: Simplify right side
   2,165.58x = 4,985,246.56
5. Step 5: Solve for x
   x = 4,985,246.56/2,165.58
6. Step 6: Final answer
   x = 2,302.04