Finding the Fourth Proportional to 1,963.56, 2,709.54 and 1,178.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,963.56 : 2,709.54 = 1,178.04 : x
2. Step 2: Convert to fraction form
   1,963.56/2,709.54 = 1,178.04/x
3. Step 3: Cross multiply
   1,963.56x = 2,709.54 × 1,178.04
4. Step 4: Simplify right side
   1,963.56x = 3,191,946.50
5. Step 5: Solve for x
   x = 3,191,946.50/1,963.56
6. Step 6: Final answer
   x = 1,625.59