Finding the Fourth Proportional to 1,568.58, 2,354.57 and 1,179.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,568.58 : 2,354.57 = 1,179.69 : x
2. Step 2: Convert to fraction form
   1,568.58/2,354.57 = 1,179.69/x
3. Step 3: Cross multiply
   1,568.58x = 2,354.57 × 1,179.69
4. Step 4: Simplify right side
   1,568.58x = 2,777,665.63
5. Step 5: Solve for x
   x = 2,777,665.63/1,568.58
6. Step 6: Final answer
   x = 1,770.82