Finding the Fourth Proportional to 1,499.41, 2,068.60 and 939.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.41 : 2,068.60 = 939.64 : x
2. Step 2: Convert to fraction form
   1,499.41/2,068.60 = 939.64/x
3. Step 3: Cross multiply
   1,499.41x = 2,068.60 × 939.64
4. Step 4: Simplify right side
   1,499.41x = 1,943,739.30
5. Step 5: Solve for x
   x = 1,943,739.30/1,499.41
6. Step 6: Final answer
   x = 1,296.34