Finding the Fourth Proportional to 1,758.43, 2,638.06 and 936.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.43 : 2,638.06 = 936.53 : x
2. Step 2: Convert to fraction form
   1,758.43/2,638.06 = 936.53/x
3. Step 3: Cross multiply
   1,758.43x = 2,638.06 × 936.53
4. Step 4: Simplify right side
   1,758.43x = 2,470,622.33
5. Step 5: Solve for x
   x = 2,470,622.33/1,758.43
6. Step 6: Final answer
   x = 1,405.02