Finding the Fourth Proportional to 3,180.70, 4,770.51 and 1,100.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,180.70 : 4,770.51 = 1,100.62 : x
2. Step 2: Convert to fraction form
   3,180.70/4,770.51 = 1,100.62/x
3. Step 3: Cross multiply
   3,180.70x = 4,770.51 × 1,100.62
4. Step 4: Simplify right side
   3,180.70x = 5,250,518.72
5. Step 5: Solve for x
   x = 5,250,518.72/3,180.70
6. Step 6: Final answer
   x = 1,650.74