Finding the Fourth Proportional to 1,084.63, 1,627.53 and 719.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,084.63 : 1,627.53 = 719.59 : x
2. Step 2: Convert to fraction form
   1,084.63/1,627.53 = 719.59/x
3. Step 3: Cross multiply
   1,084.63x = 1,627.53 × 719.59
4. Step 4: Simplify right side
   1,084.63x = 1,171,154.31
5. Step 5: Solve for x
   x = 1,171,154.31/1,084.63
6. Step 6: Final answer
   x = 1,079.77