Finding the Fourth Proportional to 1,815.69, 2,507.06 and 1,395.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,815.69 : 2,507.06 = 1,395.37 : x
2. Step 2: Convert to fraction form
   1,815.69/2,507.06 = 1,395.37/x
3. Step 3: Cross multiply
   1,815.69x = 2,507.06 × 1,395.37
4. Step 4: Simplify right side
   1,815.69x = 3,498,276.31
5. Step 5: Solve for x
   x = 3,498,276.31/1,815.69
6. Step 6: Final answer
   x = 1,926.69