Finding the Fourth Proportional to 1,434.52, 1,980.03 and 845.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.52 : 1,980.03 = 845.25 : x
2. Step 2: Convert to fraction form
   1,434.52/1,980.03 = 845.25/x
3. Step 3: Cross multiply
   1,434.52x = 1,980.03 × 845.25
4. Step 4: Simplify right side
   1,434.52x = 1,673,616.10
5. Step 5: Solve for x
   x = 1,673,616.10/1,434.52
6. Step 6: Final answer
   x = 1,166.67