Finding the Fourth Proportional to 1,945.62, 2,914.83 and 1,505.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.62 : 2,914.83 = 1,505.31 : x
2. Step 2: Convert to fraction form
   1,945.62/2,914.83 = 1,505.31/x
3. Step 3: Cross multiply
   1,945.62x = 2,914.83 × 1,505.31
4. Step 4: Simplify right side
   1,945.62x = 4,387,722.75
5. Step 5: Solve for x
   x = 4,387,722.75/1,945.62
6. Step 6: Final answer
   x = 2,255.18