Finding the Fourth Proportional to 1,453.33, 2,005.55 and 790.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,453.33 : 2,005.55 = 790.17 : x
2. Step 2: Convert to fraction form
   1,453.33/2,005.55 = 790.17/x
3. Step 3: Cross multiply
   1,453.33x = 2,005.55 × 790.17
4. Step 4: Simplify right side
   1,453.33x = 1,584,725.44
5. Step 5: Solve for x
   x = 1,584,725.44/1,453.33
6. Step 6: Final answer
   x = 1,090.41