Finding the Fourth Proportional to 1,670.87, 2,500.83 and 1,519.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,670.87 : 2,500.83 = 1,519.60 : x
2. Step 2: Convert to fraction form
   1,670.87/2,500.83 = 1,519.60/x
3. Step 3: Cross multiply
   1,670.87x = 2,500.83 × 1,519.60
4. Step 4: Simplify right side
   1,670.87x = 3,800,261.27
5. Step 5: Solve for x
   x = 3,800,261.27/1,670.87
6. Step 6: Final answer
   x = 2,274.42