Finding the Fourth Proportional to 1,453.27, 2,005.43 and 790.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,453.27 : 2,005.43 = 790.12 : x
2. Step 2: Convert to fraction form
   1,453.27/2,005.43 = 790.12/x
3. Step 3: Cross multiply
   1,453.27x = 2,005.43 × 790.12
4. Step 4: Simplify right side
   1,453.27x = 1,584,518.37
5. Step 5: Solve for x
   x = 1,584,518.37/1,453.27
6. Step 6: Final answer
   x = 1,090.31