Finding the Fourth Proportional to 1,556.55, 2,147.72 and 893.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,556.55 : 2,147.72 = 893.43 : x
2. Step 2: Convert to fraction form
   1,556.55/2,147.72 = 893.43/x
3. Step 3: Cross multiply
   1,556.55x = 2,147.72 × 893.43
4. Step 4: Simplify right side
   1,556.55x = 1,918,833.01
5. Step 5: Solve for x
   x = 1,918,833.01/1,556.55
6. Step 6: Final answer
   x = 1,232.75