Finding the Fourth Proportional to 2,185.37, 3,015.36 and 1,345.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.37 : 3,015.36 = 1,345.76 : x
2. Step 2: Convert to fraction form
   2,185.37/3,015.36 = 1,345.76/x
3. Step 3: Cross multiply
   2,185.37x = 3,015.36 × 1,345.76
4. Step 4: Simplify right side
   2,185.37x = 4,057,950.87
5. Step 5: Solve for x
   x = 4,057,950.87/2,185.37
6. Step 6: Final answer
   x = 1,856.87