Finding the Fourth Proportional to 2,945.42, 4,064.60 and 1,898.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945.42 : 4,064.60 = 1,898.09 : x
2. Step 2: Convert to fraction form
   2,945.42/4,064.60 = 1,898.09/x
3. Step 3: Cross multiply
   2,945.42x = 4,064.60 × 1,898.09
4. Step 4: Simplify right side
   2,945.42x = 7,714,967.12
5. Step 5: Solve for x
   x = 7,714,967.12/2,945.42
6. Step 6: Final answer
   x = 2,619.31