Finding the Fourth Proportional to 1,927.71, 2,892.78 and 1,198.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,927.71 : 2,892.78 = 1,198.71 : x
2. Step 2: Convert to fraction form
   1,927.71/2,892.78 = 1,198.71/x
3. Step 3: Cross multiply
   1,927.71x = 2,892.78 × 1,198.71
4. Step 4: Simplify right side
   1,927.71x = 3,467,604.31
5. Step 5: Solve for x
   x = 3,467,604.31/1,927.71
6. Step 6: Final answer
   x = 1,798.82