Finding the Fourth Proportional to 1,940.73, 2,678.22 and 1,056.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,940.73 : 2,678.22 = 1,056.53 : x
2. Step 2: Convert to fraction form
   1,940.73/2,678.22 = 1,056.53/x
3. Step 3: Cross multiply
   1,940.73x = 2,678.22 × 1,056.53
4. Step 4: Simplify right side
   1,940.73x = 2,829,601.10
5. Step 5: Solve for x
   x = 2,829,601.10/1,940.73
6. Step 6: Final answer
   x = 1,458.01