Finding the Fourth Proportional to 1,156.97, 1,725.62 and 1,084.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.97 : 1,725.62 = 1,084.07 : x
2. Step 2: Convert to fraction form
   1,156.97/1,725.62 = 1,084.07/x
3. Step 3: Cross multiply
   1,156.97x = 1,725.62 × 1,084.07
4. Step 4: Simplify right side
   1,156.97x = 1,870,678.82
5. Step 5: Solve for x
   x = 1,870,678.82/1,156.97
6. Step 6: Final answer
   x = 1,616.88