Finding the Fourth Proportional to 1,870.45, 2,581.61 and 1,241.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.45 : 2,581.61 = 1,241.02 : x
2. Step 2: Convert to fraction form
   1,870.45/2,581.61 = 1,241.02/x
3. Step 3: Cross multiply
   1,870.45x = 2,581.61 × 1,241.02
4. Step 4: Simplify right side
   1,870.45x = 3,203,829.64
5. Step 5: Solve for x
   x = 3,203,829.64/1,870.45
6. Step 6: Final answer
   x = 1,712.87