Finding the Fourth Proportional to 1,997.46, 2,991.72 and 1,555.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997.46 : 2,991.72 = 1,555.27 : x
2. Step 2: Convert to fraction form
   1,997.46/2,991.72 = 1,555.27/x
3. Step 3: Cross multiply
   1,997.46x = 2,991.72 × 1,555.27
4. Step 4: Simplify right side
   1,997.46x = 4,652,932.36
5. Step 5: Solve for x
   x = 4,652,932.36/1,997.46
6. Step 6: Final answer
   x = 2,329.42