Finding the Fourth Proportional to 1,997.42, 2,994.24 and 1,071.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997.42 : 2,994.24 = 1,071.59 : x
2. Step 2: Convert to fraction form
   1,997.42/2,994.24 = 1,071.59/x
3. Step 3: Cross multiply
   1,997.42x = 2,994.24 × 1,071.59
4. Step 4: Simplify right side
   1,997.42x = 3,208,597.64
5. Step 5: Solve for x
   x = 3,208,597.64/1,997.42
6. Step 6: Final answer
   x = 1,606.37