Finding the Fourth Proportional to 1,782.72, 2,662.56 and 1,683.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,782.72 : 2,662.56 = 1,683.36 : x
2. Step 2: Convert to fraction form
   1,782.72/2,662.56 = 1,683.36/x
3. Step 3: Cross multiply
   1,782.72x = 2,662.56 × 1,683.36
4. Step 4: Simplify right side
   1,782.72x = 4,482,047.00
5. Step 5: Solve for x
   x = 4,482,047.00/1,782.72
6. Step 6: Final answer
   x = 2,514.16