Finding the Fourth Proportional to 1,493.56, 2,238.90 and 763.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.56 : 2,238.90 = 763.48 : x
2. Step 2: Convert to fraction form
   1,493.56/2,238.90 = 763.48/x
3. Step 3: Cross multiply
   1,493.56x = 2,238.90 × 763.48
4. Step 4: Simplify right side
   1,493.56x = 1,709,355.37
5. Step 5: Solve for x
   x = 1,709,355.37/1,493.56
6. Step 6: Final answer
   x = 1,144.48