Finding the Fourth Proportional to 2,945.37, 4,419.23 and 1,213.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945.37 : 4,419.23 = 1,213.59 : x
2. Step 2: Convert to fraction form
   2,945.37/4,419.23 = 1,213.59/x
3. Step 3: Cross multiply
   2,945.37x = 4,419.23 × 1,213.59
4. Step 4: Simplify right side
   2,945.37x = 5,363,127.27
5. Step 5: Solve for x
   x = 5,363,127.27/2,945.37
6. Step 6: Final answer
   x = 1,820.87