Finding the Fourth Proportional to 1,516.23, 2,090.72 and 956.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,516.23 : 2,090.72 = 956.03 : x
2. Step 2: Convert to fraction form
   1,516.23/2,090.72 = 956.03/x
3. Step 3: Cross multiply
   1,516.23x = 2,090.72 × 956.03
4. Step 4: Simplify right side
   1,516.23x = 1,998,782.98
5. Step 5: Solve for x
   x = 1,998,782.98/1,516.23
6. Step 6: Final answer
   x = 1,318.26