Finding the Fourth Proportional to 3,438.59, 4,743.43 and 2,109.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,438.59 : 4,743.43 = 2,109.98 : x
2. Step 2: Convert to fraction form
   3,438.59/4,743.43 = 2,109.98/x
3. Step 3: Cross multiply
   3,438.59x = 4,743.43 × 2,109.98
4. Step 4: Simplify right side
   3,438.59x = 10,008,549.02
5. Step 5: Solve for x
   x = 10,008,549.02/3,438.59
6. Step 6: Final answer
   x = 2,910.66