Finding the Fourth Proportional to 2,015.03, 2,780.89 and 1,175.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.03 : 2,780.89 = 1,175.76 : x
2. Step 2: Convert to fraction form
   2,015.03/2,780.89 = 1,175.76/x
3. Step 3: Cross multiply
   2,015.03x = 2,780.89 × 1,175.76
4. Step 4: Simplify right side
   2,015.03x = 3,269,656.29
5. Step 5: Solve for x
   x = 3,269,656.29/2,015.03
6. Step 6: Final answer
   x = 1,622.63