Finding the Fourth Proportional to 1,223.58, 1,832.72 and 753.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223.58 : 1,832.72 = 753.62 : x
2. Step 2: Convert to fraction form
   1,223.58/1,832.72 = 753.62/x
3. Step 3: Cross multiply
   1,223.58x = 1,832.72 × 753.62
4. Step 4: Simplify right side
   1,223.58x = 1,381,170.68
5. Step 5: Solve for x
   x = 1,381,170.68/1,223.58
6. Step 6: Final answer
   x = 1,128.79