Finding the Fourth Proportional to 2,161.94, 3,242.59 and 1,345.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,161.94 : 3,242.59 = 1,345.46 : x
2. Step 2: Convert to fraction form
   2,161.94/3,242.59 = 1,345.46/x
3. Step 3: Cross multiply
   2,161.94x = 3,242.59 × 1,345.46
4. Step 4: Simplify right side
   2,161.94x = 4,362,755.56
5. Step 5: Solve for x
   x = 4,362,755.56/2,161.94
6. Step 6: Final answer
   x = 2,017.99