Finding the Fourth Proportional to 2,782.98, 4,174.91 and 1,321.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,782.98 : 4,174.91 = 1,321.34 : x
2. Step 2: Convert to fraction form
   2,782.98/4,174.91 = 1,321.34/x
3. Step 3: Cross multiply
   2,782.98x = 4,174.91 × 1,321.34
4. Step 4: Simplify right side
   2,782.98x = 5,516,448.10
5. Step 5: Solve for x
   x = 5,516,448.10/2,782.98
6. Step 6: Final answer
   x = 1,982.21