Finding the Fourth Proportional to 1,085.04, 1,619.71 and 953.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.04 : 1,619.71 = 953.68 : x
2. Step 2: Convert to fraction form
   1,085.04/1,619.71 = 953.68/x
3. Step 3: Cross multiply
   1,085.04x = 1,619.71 × 953.68
4. Step 4: Simplify right side
   1,085.04x = 1,544,680.98
5. Step 5: Solve for x
   x = 1,544,680.98/1,085.04
6. Step 6: Final answer
   x = 1,423.61