Finding the Fourth Proportional to 1,828.72, 2,719.76 and 1,782.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,828.72 : 2,719.76 = 1,782.58 : x
2. Step 2: Convert to fraction form
   1,828.72/2,719.76 = 1,782.58/x
3. Step 3: Cross multiply
   1,828.72x = 2,719.76 × 1,782.58
4. Step 4: Simplify right side
   1,828.72x = 4,848,189.78
5. Step 5: Solve for x
   x = 4,848,189.78/1,828.72
6. Step 6: Final answer
   x = 2,651.14