Finding the Fourth Proportional to 2,635.16, 3,634.86 and 1,572.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,635.16 : 3,634.86 = 1,572.18 : x
2. Step 2: Convert to fraction form
   2,635.16/3,634.86 = 1,572.18/x
3. Step 3: Cross multiply
   2,635.16x = 3,634.86 × 1,572.18
4. Step 4: Simplify right side
   2,635.16x = 5,714,654.19
5. Step 5: Solve for x
   x = 5,714,654.19/2,635.16
6. Step 6: Final answer
   x = 2,168.62