Finding the Fourth Proportional to 1,186.50, 1,780.85 and 601.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,186.50 : 1,780.85 = 601.91 : x
2. Step 2: Convert to fraction form
   1,186.50/1,780.85 = 601.91/x
3. Step 3: Cross multiply
   1,186.50x = 1,780.85 × 601.91
4. Step 4: Simplify right side
   1,186.50x = 1,071,920.72
5. Step 5: Solve for x
   x = 1,071,920.72/1,186.50
6. Step 6: Final answer
   x = 903.43