Finding the Fourth Proportional to 1,770.69, 2,444.16 and 1,072.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,770.69 : 2,444.16 = 1,072.07 : x
2. Step 2: Convert to fraction form
   1,770.69/2,444.16 = 1,072.07/x
3. Step 3: Cross multiply
   1,770.69x = 2,444.16 × 1,072.07
4. Step 4: Simplify right side
   1,770.69x = 2,620,293.03
5. Step 5: Solve for x
   x = 2,620,293.03/1,770.69
6. Step 6: Final answer
   x = 1,479.81