Finding the Fourth Proportional to 2,635.36, 3,636.28 and 1,587.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,635.36 : 3,636.28 = 1,587.48 : x
2. Step 2: Convert to fraction form
   2,635.36/3,636.28 = 1,587.48/x
3. Step 3: Cross multiply
   2,635.36x = 3,636.28 × 1,587.48
4. Step 4: Simplify right side
   2,635.36x = 5,772,521.77
5. Step 5: Solve for x
   x = 5,772,521.77/2,635.36
6. Step 6: Final answer
   x = 2,190.41