Finding the Fourth Proportional to 2,390.59, 3,586.22 and 1,156.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390.59 : 3,586.22 = 1,156.98 : x
2. Step 2: Convert to fraction form
   2,390.59/3,586.22 = 1,156.98/x
3. Step 3: Cross multiply
   2,390.59x = 3,586.22 × 1,156.98
4. Step 4: Simplify right side
   2,390.59x = 4,149,203.33
5. Step 5: Solve for x
   x = 4,149,203.33/2,390.59
6. Step 6: Final answer
   x = 1,735.64