Finding the Fourth Proportional to 3,406.98, 5,109.82 and 1,066.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,406.98 : 5,109.82 = 1,066.63 : x
2. Step 2: Convert to fraction form
   3,406.98/5,109.82 = 1,066.63/x
3. Step 3: Cross multiply
   3,406.98x = 5,109.82 × 1,066.63
4. Step 4: Simplify right side
   3,406.98x = 5,450,256.42
5. Step 5: Solve for x
   x = 5,450,256.42/3,406.98
6. Step 6: Final answer
   x = 1,599.73