Finding the Fourth Proportional to 2,071.68, 2,858.68 and 1,175.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.68 : 2,858.68 = 1,175.42 : x
2. Step 2: Convert to fraction form
   2,071.68/2,858.68 = 1,175.42/x
3. Step 3: Cross multiply
   2,071.68x = 2,858.68 × 1,175.42
4. Step 4: Simplify right side
   2,071.68x = 3,360,149.65
5. Step 5: Solve for x
   x = 3,360,149.65/2,071.68
6. Step 6: Final answer
   x = 1,621.94