Finding the Fourth Proportional to 1,978.97, 2,730.12 and 1,181.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.97 : 2,730.12 = 1,181.84 : x
2. Step 2: Convert to fraction form
   1,978.97/2,730.12 = 1,181.84/x
3. Step 3: Cross multiply
   1,978.97x = 2,730.12 × 1,181.84
4. Step 4: Simplify right side
   1,978.97x = 3,226,565.02
5. Step 5: Solve for x
   x = 3,226,565.02/1,978.97
6. Step 6: Final answer
   x = 1,630.43