Finding the Fourth Proportional to 1,435.50, 1,980.68 and 845.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435.50 : 1,980.68 = 845.82 : x
2. Step 2: Convert to fraction form
   1,435.50/1,980.68 = 845.82/x
3. Step 3: Cross multiply
   1,435.50x = 1,980.68 × 845.82
4. Step 4: Simplify right side
   1,435.50x = 1,675,298.76
5. Step 5: Solve for x
   x = 1,675,298.76/1,435.50
6. Step 6: Final answer
   x = 1,167.05