Finding the Fourth Proportional to 1,259.10, 1,737.72 and 964.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,259.10 : 1,737.72 = 964.26 : x
2. Step 2: Convert to fraction form
   1,259.10/1,737.72 = 964.26/x
3. Step 3: Cross multiply
   1,259.10x = 1,737.72 × 964.26
4. Step 4: Simplify right side
   1,259.10x = 1,675,613.89
5. Step 5: Solve for x
   x = 1,675,613.89/1,259.10
6. Step 6: Final answer
   x = 1,330.80