Finding the Fourth Proportional to 1,405.29, 1,939.41 and 846.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405.29 : 1,939.41 = 846.03 : x
2. Step 2: Convert to fraction form
   1,405.29/1,939.41 = 846.03/x
3. Step 3: Cross multiply
   1,405.29x = 1,939.41 × 846.03
4. Step 4: Simplify right side
   1,405.29x = 1,640,799.04
5. Step 5: Solve for x
   x = 1,640,799.04/1,405.29
6. Step 6: Final answer
   x = 1,167.59