Finding the Fourth Proportional to 1,686.78, 2,326.95 and 1,453.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,686.78 : 2,326.95 = 1,453.50 : x
2. Step 2: Convert to fraction form
   1,686.78/2,326.95 = 1,453.50/x
3. Step 3: Cross multiply
   1,686.78x = 2,326.95 × 1,453.50
4. Step 4: Simplify right side
   1,686.78x = 3,382,221.83
5. Step 5: Solve for x
   x = 3,382,221.83/1,686.78
6. Step 6: Final answer
   x = 2,005.14