Finding the Fourth Proportional to 1,409.59, 1,942.90 and 1,059.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409.59 : 1,942.90 = 1,059.67 : x
2. Step 2: Convert to fraction form
   1,409.59/1,942.90 = 1,059.67/x
3. Step 3: Cross multiply
   1,409.59x = 1,942.90 × 1,059.67
4. Step 4: Simplify right side
   1,409.59x = 2,058,832.84
5. Step 5: Solve for x
   x = 2,058,832.84/1,409.59
6. Step 6: Final answer
   x = 1,460.59