Finding the Fourth Proportional to 1,709.88, 2,359.86 and 1,185

Step by Step Solution

1. Step 1: Write the proportion equation
   1,709.88 : 2,359.86 = 1,185 : x
2. Step 2: Convert to fraction form
   1,709.88/2,359.86 = 1,185/x
3. Step 3: Cross multiply
   1,709.88x = 2,359.86 × 1,185
4. Step 4: Simplify right side
   1,709.88x = 2,796,434.10
5. Step 5: Solve for x
   x = 2,796,434.10/1,709.88
6. Step 6: Final answer
   x = 1,635.46