Finding the Fourth Proportional to 2,045.35, 3,069.24 and 1,072.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045.35 : 3,069.24 = 1,072.00 : x
2. Step 2: Convert to fraction form
   2,045.35/3,069.24 = 1,072.00/x
3. Step 3: Cross multiply
   2,045.35x = 3,069.24 × 1,072.00
4. Step 4: Simplify right side
   2,045.35x = 3,290,204.57
5. Step 5: Solve for x
   x = 3,290,204.57/2,045.35
6. Step 6: Final answer
   x = 1,608.63