Finding the Fourth Proportional to 1,435.97, 1,981.40 and 846.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435.97 : 1,981.40 = 846.42 : x
2. Step 2: Convert to fraction form
   1,435.97/1,981.40 = 846.42/x
3. Step 3: Cross multiply
   1,435.97x = 1,981.40 × 846.42
4. Step 4: Simplify right side
   1,435.97x = 1,677,092.36
5. Step 5: Solve for x
   x = 1,677,092.36/1,435.97
6. Step 6: Final answer
   x = 1,167.92