Finding the Fourth Proportional to 1,974.57, 2,724.72 and 1,178.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,974.57 : 2,724.72 = 1,178.14 : x
2. Step 2: Convert to fraction form
   1,974.57/2,724.72 = 1,178.14/x
3. Step 3: Cross multiply
   1,974.57x = 2,724.72 × 1,178.14
4. Step 4: Simplify right side
   1,974.57x = 3,210,101.62
5. Step 5: Solve for x
   x = 3,210,101.62/1,974.57
6. Step 6: Final answer
   x = 1,625.72