Finding the Fourth Proportional to 1,336.96, 1,996.40 and 1,059.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.96 : 1,996.40 = 1,059.94 : x
2. Step 2: Convert to fraction form
   1,336.96/1,996.40 = 1,059.94/x
3. Step 3: Cross multiply
   1,336.96x = 1,996.40 × 1,059.94
4. Step 4: Simplify right side
   1,336.96x = 2,116,064.22
5. Step 5: Solve for x
   x = 2,116,064.22/1,336.96
6. Step 6: Final answer
   x = 1,582.74