Finding the Fourth Proportional to 1,435.52, 1,980.72 and 845.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435.52 : 1,980.72 = 845.92 : x
2. Step 2: Convert to fraction form
   1,435.52/1,980.72 = 845.92/x
3. Step 3: Cross multiply
   1,435.52x = 1,980.72 × 845.92
4. Step 4: Simplify right side
   1,435.52x = 1,675,530.66
5. Step 5: Solve for x
   x = 1,675,530.66/1,435.52
6. Step 6: Final answer
   x = 1,167.19