Finding the Fourth Proportional to 2,061.36, 3,094.20 and 763.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.36 : 3,094.20 = 763.20 : x
2. Step 2: Convert to fraction form
   2,061.36/3,094.20 = 763.20/x
3. Step 3: Cross multiply
   2,061.36x = 3,094.20 × 763.20
4. Step 4: Simplify right side
   2,061.36x = 2,361,493.44
5. Step 5: Solve for x
   x = 2,361,493.44/2,061.36
6. Step 6: Final answer
   x = 1,145.60