Finding the Fourth Proportional to 1,180.78, 1,770.09 and 603.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180.78 : 1,770.09 = 603.52 : x
2. Step 2: Convert to fraction form
   1,180.78/1,770.09 = 603.52/x
3. Step 3: Cross multiply
   1,180.78x = 1,770.09 × 603.52
4. Step 4: Simplify right side
   1,180.78x = 1,068,284.72
5. Step 5: Solve for x
   x = 1,068,284.72/1,180.78
6. Step 6: Final answer
   x = 904.73