Finding the Fourth Proportional to 2,071.45, 2,858.52 and 1,264.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.45 : 2,858.52 = 1,264.29 : x
2. Step 2: Convert to fraction form
   2,071.45/2,858.52 = 1,264.29/x
3. Step 3: Cross multiply
   2,071.45x = 2,858.52 × 1,264.29
4. Step 4: Simplify right side
   2,071.45x = 3,613,998.25
5. Step 5: Solve for x
   x = 3,613,998.25/2,071.45
6. Step 6: Final answer
   x = 1,744.67