Finding the Fourth Proportional to 2,109.03, 2,910.38 and 1,164.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.03 : 2,910.38 = 1,164.80 : x
2. Step 2: Convert to fraction form
   2,109.03/2,910.38 = 1,164.80/x
3. Step 3: Cross multiply
   2,109.03x = 2,910.38 × 1,164.80
4. Step 4: Simplify right side
   2,109.03x = 3,390,010.62
5. Step 5: Solve for x
   x = 3,390,010.62/2,109.03
6. Step 6: Final answer
   x = 1,607.38