Finding the Fourth Proportional to 1,804.86, 2,704.05 and 1,678.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,804.86 : 2,704.05 = 1,678.50 : x
2. Step 2: Convert to fraction form
   1,804.86/2,704.05 = 1,678.50/x
3. Step 3: Cross multiply
   1,804.86x = 2,704.05 × 1,678.50
4. Step 4: Simplify right side
   1,804.86x = 4,538,747.93
5. Step 5: Solve for x
   x = 4,538,747.93/1,804.86
6. Step 6: Final answer
   x = 2,514.74