Finding the Fourth Proportional to 2,776.34, 4,164.49 and 1,316.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,776.34 : 4,164.49 = 1,316.52 : x
2. Step 2: Convert to fraction form
   2,776.34/4,164.49 = 1,316.52/x
3. Step 3: Cross multiply
   2,776.34x = 4,164.49 × 1,316.52
4. Step 4: Simplify right side
   2,776.34x = 5,482,634.37
5. Step 5: Solve for x
   x = 5,482,634.37/2,776.34
6. Step 6: Final answer
   x = 1,974.77