Finding the Fourth Proportional to 1,776.27, 2,450.18 and 1,145.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,776.27 : 2,450.18 = 1,145.79 : x
2. Step 2: Convert to fraction form
   1,776.27/2,450.18 = 1,145.79/x
3. Step 3: Cross multiply
   1,776.27x = 2,450.18 × 1,145.79
4. Step 4: Simplify right side
   1,776.27x = 2,807,394.61
5. Step 5: Solve for x
   x = 2,807,394.61/1,776.27
6. Step 6: Final answer
   x = 1,580.50