Finding the Fourth Proportional to 1,178.55, 1,768.59 and 1,088.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,178.55 : 1,768.59 = 1,088.37 : x
2. Step 2: Convert to fraction form
   1,178.55/1,768.59 = 1,088.37/x
3. Step 3: Cross multiply
   1,178.55x = 1,768.59 × 1,088.37
4. Step 4: Simplify right side
   1,178.55x = 1,924,880.30
5. Step 5: Solve for x
   x = 1,924,880.30/1,178.55
6. Step 6: Final answer
   x = 1,633.26