Finding the Fourth Proportional to 2,011.96, 2,776.61 and 1,161.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.96 : 2,776.61 = 1,161.33 : x
2. Step 2: Convert to fraction form
   2,011.96/2,776.61 = 1,161.33/x
3. Step 3: Cross multiply
   2,011.96x = 2,776.61 × 1,161.33
4. Step 4: Simplify right side
   2,011.96x = 3,224,546.61
5. Step 5: Solve for x
   x = 3,224,546.61/2,011.96
6. Step 6: Final answer
   x = 1,602.69