Finding the Fourth Proportional to 1,395.31, 2,090.49 and 846.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.31 : 2,090.49 = 846.24 : x
2. Step 2: Convert to fraction form
   1,395.31/2,090.49 = 846.24/x
3. Step 3: Cross multiply
   1,395.31x = 2,090.49 × 846.24
4. Step 4: Simplify right side
   1,395.31x = 1,769,056.26
5. Step 5: Solve for x
   x = 1,769,056.26/1,395.31
6. Step 6: Final answer
   x = 1,267.86