Finding the Fourth Proportional to 2,848.34, 3,931.46 and 2,009.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,848.34 : 3,931.46 = 2,009.30 : x
2. Step 2: Convert to fraction form
   2,848.34/3,931.46 = 2,009.30/x
3. Step 3: Cross multiply
   2,848.34x = 3,931.46 × 2,009.30
4. Step 4: Simplify right side
   2,848.34x = 7,899,482.58
5. Step 5: Solve for x
   x = 7,899,482.58/2,848.34
6. Step 6: Final answer
   x = 2,773.36