Finding the Fourth Proportional to 2,006.21, 2,768.59 and 1,109.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,006.21 : 2,768.59 = 1,109.90 : x
2. Step 2: Convert to fraction form
   2,006.21/2,768.59 = 1,109.90/x
3. Step 3: Cross multiply
   2,006.21x = 2,768.59 × 1,109.90
4. Step 4: Simplify right side
   2,006.21x = 3,072,852.32
5. Step 5: Solve for x
   x = 3,072,852.32/2,006.21
6. Step 6: Final answer
   x = 1,531.67