Finding the Fourth Proportional to 2,185.50, 3,274.38 and 1,259.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.50 : 3,274.38 = 1,259.58 : x
2. Step 2: Convert to fraction form
   2,185.50/3,274.38 = 1,259.58/x
3. Step 3: Cross multiply
   2,185.50x = 3,274.38 × 1,259.58
4. Step 4: Simplify right side
   2,185.50x = 4,124,343.56
5. Step 5: Solve for x
   x = 4,124,343.56/2,185.50
6. Step 6: Final answer
   x = 1,887.14