Finding the Fourth Proportional to 1,123.73, 1,683.77 and 797.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.73 : 1,683.77 = 797.50 : x
2. Step 2: Convert to fraction form
   1,123.73/1,683.77 = 797.50/x
3. Step 3: Cross multiply
   1,123.73x = 1,683.77 × 797.50
4. Step 4: Simplify right side
   1,123.73x = 1,342,806.58
5. Step 5: Solve for x
   x = 1,342,806.58/1,123.73
6. Step 6: Final answer
   x = 1,194.95