Finding the Fourth Proportional to 1,978.16, 2,964.50 and 1,246.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.16 : 2,964.50 = 1,246.44 : x
2. Step 2: Convert to fraction form
   1,978.16/2,964.50 = 1,246.44/x
3. Step 3: Cross multiply
   1,978.16x = 2,964.50 × 1,246.44
4. Step 4: Simplify right side
   1,978.16x = 3,695,071.38
5. Step 5: Solve for x
   x = 3,695,071.38/1,978.16
6. Step 6: Final answer
   x = 1,867.93