Finding the Fourth Proportional to 5,878.56, 8,814.72 and 1,981.68

Step by Step Solution

1. Step 1: Write the proportion equation
   5,878.56 : 8,814.72 = 1,981.68 : x
2. Step 2: Convert to fraction form
   5,878.56/8,814.72 = 1,981.68/x
3. Step 3: Cross multiply
   5,878.56x = 8,814.72 × 1,981.68
4. Step 4: Simplify right side
   5,878.56x = 17,467,954.33
5. Step 5: Solve for x
   x = 17,467,954.33/5,878.56
6. Step 6: Final answer
   x = 2,971.47