Finding the Fourth Proportional to 2,181.55, 3,011.32 and 1,297.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.55 : 3,011.32 = 1,297.35 : x
2. Step 2: Convert to fraction form
   2,181.55/3,011.32 = 1,297.35/x
3. Step 3: Cross multiply
   2,181.55x = 3,011.32 × 1,297.35
4. Step 4: Simplify right side
   2,181.55x = 3,906,736.00
5. Step 5: Solve for x
   x = 3,906,736.00/2,181.55
6. Step 6: Final answer
   x = 1,790.81