Finding the Fourth Proportional to 1,910.36, 2,636.22 and 1,071.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,910.36 : 2,636.22 = 1,071.05 : x
2. Step 2: Convert to fraction form
   1,910.36/2,636.22 = 1,071.05/x
3. Step 3: Cross multiply
   1,910.36x = 2,636.22 × 1,071.05
4. Step 4: Simplify right side
   1,910.36x = 2,823,523.43
5. Step 5: Solve for x
   x = 2,823,523.43/1,910.36
6. Step 6: Final answer
   x = 1,478.01