Finding the Fourth Proportional to 3,071.52, 4,238.72 and 1,674.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,071.52 : 4,238.72 = 1,674.32 : x
2. Step 2: Convert to fraction form
   3,071.52/4,238.72 = 1,674.32/x
3. Step 3: Cross multiply
   3,071.52x = 4,238.72 × 1,674.32
4. Step 4: Simplify right side
   3,071.52x = 7,096,973.67
5. Step 5: Solve for x
   x = 7,096,973.67/3,071.52
6. Step 6: Final answer
   x = 2,310.57