Finding the Fourth Proportional to 1,945.25, 2,684.40 and 1,061.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.25 : 2,684.40 = 1,061.05 : x
2. Step 2: Convert to fraction form
   1,945.25/2,684.40 = 1,061.05/x
3. Step 3: Cross multiply
   1,945.25x = 2,684.40 × 1,061.05
4. Step 4: Simplify right side
   1,945.25x = 2,848,282.62
5. Step 5: Solve for x
   x = 2,848,282.62/1,945.25
6. Step 6: Final answer
   x = 1,464.22