Finding the Fourth Proportional to 1,611.10, 2,403.82 and 1,377.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,611.10 : 2,403.82 = 1,377.42 : x
2. Step 2: Convert to fraction form
   1,611.10/2,403.82 = 1,377.42/x
3. Step 3: Cross multiply
   1,611.10x = 2,403.82 × 1,377.42
4. Step 4: Simplify right side
   1,611.10x = 3,311,069.74
5. Step 5: Solve for x
   x = 3,311,069.74/1,611.10
6. Step 6: Final answer
   x = 2,055.16