Finding the Fourth Proportional to 1,945.39, 2,935.42 and 1,869.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.39 : 2,935.42 = 1,869.46 : x
2. Step 2: Convert to fraction form
   1,945.39/2,935.42 = 1,869.46/x
3. Step 3: Cross multiply
   1,945.39x = 2,935.42 × 1,869.46
4. Step 4: Simplify right side
   1,945.39x = 5,487,650.27
5. Step 5: Solve for x
   x = 5,487,650.27/1,945.39
6. Step 6: Final answer
   x = 2,820.85