Finding the Fourth Proportional to 1,852.76, 2,556.72 and 1,013.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,852.76 : 2,556.72 = 1,013.42 : x
2. Step 2: Convert to fraction form
   1,852.76/2,556.72 = 1,013.42/x
3. Step 3: Cross multiply
   1,852.76x = 2,556.72 × 1,013.42
4. Step 4: Simplify right side
   1,852.76x = 2,591,031.18
5. Step 5: Solve for x
   x = 2,591,031.18/1,852.76
6. Step 6: Final answer
   x = 1,398.47