Finding the Fourth Proportional to 1,777.74, 2,667.69 and 1,630.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,777.74 : 2,667.69 = 1,630.86 : x
2. Step 2: Convert to fraction form
   1,777.74/2,667.69 = 1,630.86/x
3. Step 3: Cross multiply
   1,777.74x = 2,667.69 × 1,630.86
4. Step 4: Simplify right side
   1,777.74x = 4,350,628.91
5. Step 5: Solve for x
   x = 4,350,628.91/1,777.74
6. Step 6: Final answer
   x = 2,447.28