Finding the Fourth Proportional to 1,434.52, 1,979.58 and 845.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.52 : 1,979.58 = 845.02 : x
2. Step 2: Convert to fraction form
   1,434.52/1,979.58 = 845.02/x
3. Step 3: Cross multiply
   1,434.52x = 1,979.58 × 845.02
4. Step 4: Simplify right side
   1,434.52x = 1,672,784.69
5. Step 5: Solve for x
   x = 1,672,784.69/1,434.52
6. Step 6: Final answer
   x = 1,166.09