Finding the Fourth Proportional to 1,436.23, 1,981.20 and 846.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.23 : 1,981.20 = 846.69 : x
2. Step 2: Convert to fraction form
   1,436.23/1,981.20 = 846.69/x
3. Step 3: Cross multiply
   1,436.23x = 1,981.20 × 846.69
4. Step 4: Simplify right side
   1,436.23x = 1,677,462.23
5. Step 5: Solve for x
   x = 1,677,462.23/1,436.23
6. Step 6: Final answer
   x = 1,167.96