Finding the Fourth Proportional to 3,997.04, 5,994.12 and 1,688.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,997.04 : 5,994.12 = 1,688.72 : x
2. Step 2: Convert to fraction form
   3,997.04/5,994.12 = 1,688.72/x
3. Step 3: Cross multiply
   3,997.04x = 5,994.12 × 1,688.72
4. Step 4: Simplify right side
   3,997.04x = 10,122,390.33
5. Step 5: Solve for x
   x = 10,122,390.33/3,997.04
6. Step 6: Final answer
   x = 2,532.47