Finding the Fourth Proportional to 2,330.09, 3,215.57 and 1,267.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,330.09 : 3,215.57 = 1,267.88 : x
2. Step 2: Convert to fraction form
   2,330.09/3,215.57 = 1,267.88/x
3. Step 3: Cross multiply
   2,330.09x = 3,215.57 × 1,267.88
4. Step 4: Simplify right side
   2,330.09x = 4,076,956.89
5. Step 5: Solve for x
   x = 4,076,956.89/2,330.09
6. Step 6: Final answer
   x = 1,749.70