Finding the Fourth Proportional to 1,736.32, 2,605.56 and 763.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,736.32 : 2,605.56 = 763.24 : x
2. Step 2: Convert to fraction form
   1,736.32/2,605.56 = 763.24/x
3. Step 3: Cross multiply
   1,736.32x = 2,605.56 × 763.24
4. Step 4: Simplify right side
   1,736.32x = 1,988,667.61
5. Step 5: Solve for x
   x = 1,988,667.61/1,736.32
6. Step 6: Final answer
   x = 1,145.33