Finding the Fourth Proportional to 2,095.76, 2,890.06 and 1,780.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,095.76 : 2,890.06 = 1,780.68 : x
2. Step 2: Convert to fraction form
   2,095.76/2,890.06 = 1,780.68/x
3. Step 3: Cross multiply
   2,095.76x = 2,890.06 × 1,780.68
4. Step 4: Simplify right side
   2,095.76x = 5,146,272.04
5. Step 5: Solve for x
   x = 5,146,272.04/2,095.76
6. Step 6: Final answer
   x = 2,455.56