Finding the Fourth Proportional to 3,597.57, 5,397.15 and 1,406.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,597.57 : 5,397.15 = 1,406.31 : x
2. Step 2: Convert to fraction form
   3,597.57/5,397.15 = 1,406.31/x
3. Step 3: Cross multiply
   3,597.57x = 5,397.15 × 1,406.31
4. Step 4: Simplify right side
   3,597.57x = 7,590,066.02
5. Step 5: Solve for x
   x = 7,590,066.02/3,597.57
6. Step 6: Final answer
   x = 2,109.78