Finding the Fourth Proportional to 1,241.76, 1,870.01 and 1,081.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,241.76 : 1,870.01 = 1,081.38 : x
2. Step 2: Convert to fraction form
   1,241.76/1,870.01 = 1,081.38/x
3. Step 3: Cross multiply
   1,241.76x = 1,870.01 × 1,081.38
4. Step 4: Simplify right side
   1,241.76x = 2,022,191.41
5. Step 5: Solve for x
   x = 2,022,191.41/1,241.76
6. Step 6: Final answer
   x = 1,628.49