Finding the Fourth Proportional to 2,171.46, 2,997.30 and 1,611.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171.46 : 2,997.30 = 1,611.74 : x
2. Step 2: Convert to fraction form
   2,171.46/2,997.30 = 1,611.74/x
3. Step 3: Cross multiply
   2,171.46x = 2,997.30 × 1,611.74
4. Step 4: Simplify right side
   2,171.46x = 4,830,868.30
5. Step 5: Solve for x
   x = 4,830,868.30/2,171.46
6. Step 6: Final answer
   x = 2,224.71