Finding the Fourth Proportional to 1,770.76, 2,443.92 and 1,350.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,770.76 : 2,443.92 = 1,350.40 : x
2. Step 2: Convert to fraction form
   1,770.76/2,443.92 = 1,350.40/x
3. Step 3: Cross multiply
   1,770.76x = 2,443.92 × 1,350.40
4. Step 4: Simplify right side
   1,770.76x = 3,300,269.57
5. Step 5: Solve for x
   x = 3,300,269.57/1,770.76
6. Step 6: Final answer
   x = 1,863.76