Finding the Fourth Proportional to 2,110.72, 2,913.04 and 1,226.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,110.72 : 2,913.04 = 1,226.56 : x
2. Step 2: Convert to fraction form
   2,110.72/2,913.04 = 1,226.56/x
3. Step 3: Cross multiply
   2,110.72x = 2,913.04 × 1,226.56
4. Step 4: Simplify right side
   2,110.72x = 3,573,018.34
5. Step 5: Solve for x
   x = 3,573,018.34/2,110.72
6. Step 6: Final answer
   x = 1,692.80