Finding the Fourth Proportional to 1,436.10, 1,981.82 and 846.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.10 : 1,981.82 = 846.64 : x
2. Step 2: Convert to fraction form
   1,436.10/1,981.82 = 846.64/x
3. Step 3: Cross multiply
   1,436.10x = 1,981.82 × 846.64
4. Step 4: Simplify right side
   1,436.10x = 1,677,888.08
5. Step 5: Solve for x
   x = 1,677,888.08/1,436.10
6. Step 6: Final answer
   x = 1,168.36