Finding the Fourth Proportional to 1,777.59, 2,662.74 and 1,190.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,777.59 : 2,662.74 = 1,190.79 : x
2. Step 2: Convert to fraction form
   1,777.59/2,662.74 = 1,190.79/x
3. Step 3: Cross multiply
   1,777.59x = 2,662.74 × 1,190.79
4. Step 4: Simplify right side
   1,777.59x = 3,170,764.16
5. Step 5: Solve for x
   x = 3,170,764.16/1,777.59
6. Step 6: Final answer
   x = 1,783.74