Finding the Fourth Proportional to 2,071.72, 2,858.48 and 1,175.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.72 : 2,858.48 = 1,175.26 : x
2. Step 2: Convert to fraction form
   2,071.72/2,858.48 = 1,175.26/x
3. Step 3: Cross multiply
   2,071.72x = 2,858.48 × 1,175.26
4. Step 4: Simplify right side
   2,071.72x = 3,359,462.93
5. Step 5: Solve for x
   x = 3,359,462.93/2,071.72
6. Step 6: Final answer
   x = 1,621.58