Finding the Fourth Proportional to 1,178.78, 1,768.72 and 602.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,178.78 : 1,768.72 = 602.06 : x
2. Step 2: Convert to fraction form
   1,178.78/1,768.72 = 602.06/x
3. Step 3: Cross multiply
   1,178.78x = 1,768.72 × 602.06
4. Step 4: Simplify right side
   1,178.78x = 1,064,875.56
5. Step 5: Solve for x
   x = 1,064,875.56/1,178.78
6. Step 6: Final answer
   x = 903.37