Finding the Fourth Proportional to 5,074.82, 7,611.20 and 1,377.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,074.82 : 7,611.20 = 1,377.31 : x
2. Step 2: Convert to fraction form
   5,074.82/7,611.20 = 1,377.31/x
3. Step 3: Cross multiply
   5,074.82x = 7,611.20 × 1,377.31
4. Step 4: Simplify right side
   5,074.82x = 10,482,966.29
5. Step 5: Solve for x
   x = 10,482,966.29/5,074.82
6. Step 6: Final answer
   x = 2,065.68