Finding the Fourth Proportional to 1,556.82, 2,146.50 and 1,276.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,556.82 : 2,146.50 = 1,276.76 : x
2. Step 2: Convert to fraction form
   1,556.82/2,146.50 = 1,276.76/x
3. Step 3: Cross multiply
   1,556.82x = 2,146.50 × 1,276.76
4. Step 4: Simplify right side
   1,556.82x = 2,740,570.71
5. Step 5: Solve for x
   x = 2,740,570.71/1,556.82
6. Step 6: Final answer
   x = 1,760.36