Finding the Fourth Proportional to 2,165.81, 2,988.89 and 1,234.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,165.81 : 2,988.89 = 1,234.25 : x
2. Step 2: Convert to fraction form
   2,165.81/2,988.89 = 1,234.25/x
3. Step 3: Cross multiply
   2,165.81x = 2,988.89 × 1,234.25
4. Step 4: Simplify right side
   2,165.81x = 3,689,031.31
5. Step 5: Solve for x
   x = 3,689,031.31/2,165.81
6. Step 6: Final answer
   x = 1,703.30