Finding the Fourth Proportional to 1,635, 2,255.82 and 971.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,635 : 2,255.82 = 971.52 : x
2. Step 2: Convert to fraction form
   1,635/2,255.82 = 971.52/x
3. Step 3: Cross multiply
   1,635x = 2,255.82 × 971.52
4. Step 4: Simplify right side
   1,635x = 2,191,574.25
5. Step 5: Solve for x
   x = 2,191,574.25/1,635
6. Step 6: Final answer
   x = 1,340.41