Finding the Fourth Proportional to 1,554.31, 2,145.05 and 965.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,554.31 : 2,145.05 = 965.24 : x
2. Step 2: Convert to fraction form
   1,554.31/2,145.05 = 965.24/x
3. Step 3: Cross multiply
   1,554.31x = 2,145.05 × 965.24
4. Step 4: Simplify right side
   1,554.31x = 2,070,488.06
5. Step 5: Solve for x
   x = 2,070,488.06/1,554.31
6. Step 6: Final answer
   x = 1,332.09