Finding the Fourth Proportional to 1,556.72, 2,152.37 and 1,487.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,556.72 : 2,152.37 = 1,487.87 : x
2. Step 2: Convert to fraction form
   1,556.72/2,152.37 = 1,487.87/x
3. Step 3: Cross multiply
   1,556.72x = 2,152.37 × 1,487.87
4. Step 4: Simplify right side
   1,556.72x = 3,202,447.78
5. Step 5: Solve for x
   x = 3,202,447.78/1,556.72
6. Step 6: Final answer
   x = 2,057.18