Finding the Fourth Proportional to 1,896.76, 2,616.72 and 1,109.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,896.76 : 2,616.72 = 1,109.44 : x
2. Step 2: Convert to fraction form
   1,896.76/2,616.72 = 1,109.44/x
3. Step 3: Cross multiply
   1,896.76x = 2,616.72 × 1,109.44
4. Step 4: Simplify right side
   1,896.76x = 2,903,093.84
5. Step 5: Solve for x
   x = 2,903,093.84/1,896.76
6. Step 6: Final answer
   x = 1,530.55