Finding the Fourth Proportional to 1,910.47, 2,636.41 and 1,071.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,910.47 : 2,636.41 = 1,071.24 : x
2. Step 2: Convert to fraction form
   1,910.47/2,636.41 = 1,071.24/x
3. Step 3: Cross multiply
   1,910.47x = 2,636.41 × 1,071.24
4. Step 4: Simplify right side
   1,910.47x = 2,824,227.85
5. Step 5: Solve for x
   x = 2,824,227.85/1,910.47
6. Step 6: Final answer
   x = 1,478.29