Finding the Fourth Proportional to 1,780.81, 2,468.29 and 1,678.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,780.81 : 2,468.29 = 1,678.27 : x
2. Step 2: Convert to fraction form
   1,780.81/2,468.29 = 1,678.27/x
3. Step 3: Cross multiply
   1,780.81x = 2,468.29 × 1,678.27
4. Step 4: Simplify right side
   1,780.81x = 4,142,457.06
5. Step 5: Solve for x
   x = 4,142,457.06/1,780.81
6. Step 6: Final answer
   x = 2,326.16