Finding the Fourth Proportional to 1,556.82, 2,133.18 and 1,542.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,556.82 : 2,133.18 = 1,542.42 : x
2. Step 2: Convert to fraction form
   1,556.82/2,133.18 = 1,542.42/x
3. Step 3: Cross multiply
   1,556.82x = 2,133.18 × 1,542.42
4. Step 4: Simplify right side
   1,556.82x = 3,290,259.50
5. Step 5: Solve for x
   x = 3,290,259.50/1,556.82
6. Step 6: Final answer
   x = 2,113.45