Finding the Fourth Proportional to 1,758.10, 2,636.28 and 936.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.10 : 2,636.28 = 936.15 : x
2. Step 2: Convert to fraction form
   1,758.10/2,636.28 = 936.15/x
3. Step 3: Cross multiply
   1,758.10x = 2,636.28 × 936.15
4. Step 4: Simplify right side
   1,758.10x = 2,467,953.52
5. Step 5: Solve for x
   x = 2,467,953.52/1,758.10
6. Step 6: Final answer
   x = 1,403.76