Finding the Fourth Proportional to 1,556.15, 2,147.69 and 893.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,556.15 : 2,147.69 = 893.25 : x
2. Step 2: Convert to fraction form
   1,556.15/2,147.69 = 893.25/x
3. Step 3: Cross multiply
   1,556.15x = 2,147.69 × 893.25
4. Step 4: Simplify right side
   1,556.15x = 1,918,426.33
5. Step 5: Solve for x
   x = 1,918,426.33/1,556.15
6. Step 6: Final answer
   x = 1,232.81