Finding the Fourth Proportional to 1,978.84, 2,967.96 and 1,246.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.84 : 2,967.96 = 1,246.18 : x
2. Step 2: Convert to fraction form
   1,978.84/2,967.96 = 1,246.18/x
3. Step 3: Cross multiply
   1,978.84x = 2,967.96 × 1,246.18
4. Step 4: Simplify right side
   1,978.84x = 3,698,612.39
5. Step 5: Solve for x
   x = 3,698,612.39/1,978.84
6. Step 6: Final answer
   x = 1,869.08