Finding the Fourth Proportional to 1,344.34, 1,856.01 and 1,065.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,344.34 : 1,856.01 = 1,065.70 : x
2. Step 2: Convert to fraction form
   1,344.34/1,856.01 = 1,065.70/x
3. Step 3: Cross multiply
   1,344.34x = 1,856.01 × 1,065.70
4. Step 4: Simplify right side
   1,344.34x = 1,977,949.86
5. Step 5: Solve for x
   x = 1,977,949.86/1,344.34
6. Step 6: Final answer
   x = 1,471.32