Finding the Fourth Proportional to 1,776.69, 2,675.34 and 1,317.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,776.69 : 2,675.34 = 1,317.74 : x
2. Step 2: Convert to fraction form
   1,776.69/2,675.34 = 1,317.74/x
3. Step 3: Cross multiply
   1,776.69x = 2,675.34 × 1,317.74
4. Step 4: Simplify right side
   1,776.69x = 3,525,389.15
5. Step 5: Solve for x
   x = 3,525,389.15/1,776.69
6. Step 6: Final answer
   x = 1,984.25