Finding the Fourth Proportional to 1,556.52, 2,336.82 and 1,039.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,556.52 : 2,336.82 = 1,039.80 : x
2. Step 2: Convert to fraction form
   1,556.52/2,336.82 = 1,039.80/x
3. Step 3: Cross multiply
   1,556.52x = 2,336.82 × 1,039.80
4. Step 4: Simplify right side
   1,556.52x = 2,429,825.44
5. Step 5: Solve for x
   x = 2,429,825.44/1,556.52
6. Step 6: Final answer
   x = 1,561.06