Finding the Fourth Proportional to 1,940.26, 2,905.75 and 1,061.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,940.26 : 2,905.75 = 1,061.45 : x
2. Step 2: Convert to fraction form
   1,940.26/2,905.75 = 1,061.45/x
3. Step 3: Cross multiply
   1,940.26x = 2,905.75 × 1,061.45
4. Step 4: Simplify right side
   1,940.26x = 3,084,308.34
5. Step 5: Solve for x
   x = 3,084,308.34/1,940.26
6. Step 6: Final answer
   x = 1,589.64