Finding the Fourth Proportional to 1,893.81, 2,613.56 and 1,427.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,893.81 : 2,613.56 = 1,427.25 : x
2. Step 2: Convert to fraction form
   1,893.81/2,613.56 = 1,427.25/x
3. Step 3: Cross multiply
   1,893.81x = 2,613.56 × 1,427.25
4. Step 4: Simplify right side
   1,893.81x = 3,730,196.37
5. Step 5: Solve for x
   x = 3,730,196.37/1,893.81
6. Step 6: Final answer
   x = 1,969.68