Finding the Fourth Proportional to 1,997.60, 2,997.73 and 699.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997.60 : 2,997.73 = 699.06 : x
2. Step 2: Convert to fraction form
   1,997.60/2,997.73 = 699.06/x
3. Step 3: Cross multiply
   1,997.60x = 2,997.73 × 699.06
4. Step 4: Simplify right side
   1,997.60x = 2,095,601.32
5. Step 5: Solve for x
   x = 2,095,601.32/1,997.60
6. Step 6: Final answer
   x = 1,049.06