Finding the Fourth Proportional to 1,427.10, 1,969.41 and 837.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.10 : 1,969.41 = 837.49 : x
2. Step 2: Convert to fraction form
   1,427.10/1,969.41 = 837.49/x
3. Step 3: Cross multiply
   1,427.10x = 1,969.41 × 837.49
4. Step 4: Simplify right side
   1,427.10x = 1,649,361.18
5. Step 5: Solve for x
   x = 1,649,361.18/1,427.10
6. Step 6: Final answer
   x = 1,155.74