Finding the Fourth Proportional to 1,342.05, 2,005.30 and 970.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.05 : 2,005.30 = 970.09 : x
2. Step 2: Convert to fraction form
   1,342.05/2,005.30 = 970.09/x
3. Step 3: Cross multiply
   1,342.05x = 2,005.30 × 970.09
4. Step 4: Simplify right side
   1,342.05x = 1,945,321.48
5. Step 5: Solve for x
   x = 1,945,321.48/1,342.05
6. Step 6: Final answer
   x = 1,449.51