Finding the Fourth Proportional to 1,556.76, 2,147.72 and 1,449.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,556.76 : 2,147.72 = 1,449.80 : x
2. Step 2: Convert to fraction form
   1,556.76/2,147.72 = 1,449.80/x
3. Step 3: Cross multiply
   1,556.76x = 2,147.72 × 1,449.80
4. Step 4: Simplify right side
   1,556.76x = 3,113,754.52
5. Step 5: Solve for x
   x = 3,113,754.52/1,556.76
6. Step 6: Final answer
   x = 2,000.15