Finding the Fourth Proportional to 2,105.33, 3,156.19 and 1,180.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.33 : 3,156.19 = 1,180.13 : x
2. Step 2: Convert to fraction form
   2,105.33/3,156.19 = 1,180.13/x
3. Step 3: Cross multiply
   2,105.33x = 3,156.19 × 1,180.13
4. Step 4: Simplify right side
   2,105.33x = 3,724,714.50
5. Step 5: Solve for x
   x = 3,724,714.50/2,105.33
6. Step 6: Final answer
   x = 1,769.18