Finding the Fourth Proportional to 2,010.45, 3,016.18 and 777.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,010.45 : 3,016.18 = 777.53 : x
2. Step 2: Convert to fraction form
   2,010.45/3,016.18 = 777.53/x
3. Step 3: Cross multiply
   2,010.45x = 3,016.18 × 777.53
4. Step 4: Simplify right side
   2,010.45x = 2,345,155.35
5. Step 5: Solve for x
   x = 2,345,155.35/2,010.45
6. Step 6: Final answer
   x = 1,166.48