Finding the Fourth Proportional to 1,709.18, 2,360.06 and 1,080.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,709.18 : 2,360.06 = 1,080.72 : x
2. Step 2: Convert to fraction form
   1,709.18/2,360.06 = 1,080.72/x
3. Step 3: Cross multiply
   1,709.18x = 2,360.06 × 1,080.72
4. Step 4: Simplify right side
   1,709.18x = 2,550,566.75
5. Step 5: Solve for x
   x = 2,550,566.75/1,709.18
6. Step 6: Final answer
   x = 1,492.28