Finding the Fourth Proportional to 1,790.22, 2,683.89 and 764.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,790.22 : 2,683.89 = 764.94 : x
2. Step 2: Convert to fraction form
   1,790.22/2,683.89 = 764.94/x
3. Step 3: Cross multiply
   1,790.22x = 2,683.89 × 764.94
4. Step 4: Simplify right side
   1,790.22x = 2,053,014.82
5. Step 5: Solve for x
   x = 2,053,014.82/1,790.22
6. Step 6: Final answer
   x = 1,146.79