Finding the Fourth Proportional to 1,412.72, 1,948.68 and 940.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,412.72 : 1,948.68 = 940.58 : x
2. Step 2: Convert to fraction form
   1,412.72/1,948.68 = 940.58/x
3. Step 3: Cross multiply
   1,412.72x = 1,948.68 × 940.58
4. Step 4: Simplify right side
   1,412.72x = 1,832,889.43
5. Step 5: Solve for x
   x = 1,832,889.43/1,412.72
6. Step 6: Final answer
   x = 1,297.42