Finding the Fourth Proportional to 1,715.31, 2,366.28 and 1,085.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,715.31 : 2,366.28 = 1,085.94 : x
2. Step 2: Convert to fraction form
   1,715.31/2,366.28 = 1,085.94/x
3. Step 3: Cross multiply
   1,715.31x = 2,366.28 × 1,085.94
4. Step 4: Simplify right side
   1,715.31x = 2,569,638.10
5. Step 5: Solve for x
   x = 2,569,638.10/1,715.31
6. Step 6: Final answer
   x = 1,498.06