Finding the Fourth Proportional to 1,556.69, 2,148.59 and 966.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,556.69 : 2,148.59 = 966.87 : x
2. Step 2: Convert to fraction form
   1,556.69/2,148.59 = 966.87/x
3. Step 3: Cross multiply
   1,556.69x = 2,148.59 × 966.87
4. Step 4: Simplify right side
   1,556.69x = 2,077,409.63
5. Step 5: Solve for x
   x = 2,077,409.63/1,556.69
6. Step 6: Final answer
   x = 1,334.51