Finding the Fourth Proportional to 2,071.45, 2,855.46 and 1,628.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.45 : 2,855.46 = 1,628.59 : x
2. Step 2: Convert to fraction form
   2,071.45/2,855.46 = 1,628.59/x
3. Step 3: Cross multiply
   2,071.45x = 2,855.46 × 1,628.59
4. Step 4: Simplify right side
   2,071.45x = 4,650,373.60
5. Step 5: Solve for x
   x = 4,650,373.60/2,071.45
6. Step 6: Final answer
   x = 2,244.98