Finding the Fourth Proportional to 1,852.69, 2,556.78 and 1,013.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,852.69 : 2,556.78 = 1,013.37 : x
2. Step 2: Convert to fraction form
   1,852.69/2,556.78 = 1,013.37/x
3. Step 3: Cross multiply
   1,852.69x = 2,556.78 × 1,013.37
4. Step 4: Simplify right side
   1,852.69x = 2,590,964.15
5. Step 5: Solve for x
   x = 2,590,964.15/1,852.69
6. Step 6: Final answer
   x = 1,398.49