Finding the Fourth Proportional to 1,870.18, 2,581.48 and 1,282.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.18 : 2,581.48 = 1,282.42 : x
2. Step 2: Convert to fraction form
   1,870.18/2,581.48 = 1,282.42/x
3. Step 3: Cross multiply
   1,870.18x = 2,581.48 × 1,282.42
4. Step 4: Simplify right side
   1,870.18x = 3,310,541.58
5. Step 5: Solve for x
   x = 3,310,541.58/1,870.18
6. Step 6: Final answer
   x = 1,770.17