Finding the Fourth Proportional to 3,598.66, 5,394.79 and 1,406.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,598.66 : 5,394.79 = 1,406.89 : x
2. Step 2: Convert to fraction form
   3,598.66/5,394.79 = 1,406.89/x
3. Step 3: Cross multiply
   3,598.66x = 5,394.79 × 1,406.89
4. Step 4: Simplify right side
   3,598.66x = 7,589,876.10
5. Step 5: Solve for x
   x = 7,589,876.10/3,598.66
6. Step 6: Final answer
   x = 2,109.08