Finding the Fourth Proportional to 1,997.06, 2,756.43 and 1,211.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997.06 : 2,756.43 = 1,211.76 : x
2. Step 2: Convert to fraction form
   1,997.06/2,756.43 = 1,211.76/x
3. Step 3: Cross multiply
   1,997.06x = 2,756.43 × 1,211.76
4. Step 4: Simplify right side
   1,997.06x = 3,340,131.62
5. Step 5: Solve for x
   x = 3,340,131.62/1,997.06
6. Step 6: Final answer
   x = 1,672.53