Finding the Fourth Proportional to 2,536.89, 3,487.46 and 2,181.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,536.89 : 3,487.46 = 2,181.51 : x
2. Step 2: Convert to fraction form
   2,536.89/3,487.46 = 2,181.51/x
3. Step 3: Cross multiply
   2,536.89x = 3,487.46 × 2,181.51
4. Step 4: Simplify right side
   2,536.89x = 7,607,928.86
5. Step 5: Solve for x
   x = 7,607,928.86/2,536.89
6. Step 6: Final answer
   x = 2,998.92