Finding the Fourth Proportional to 2,405.30, 3,607.86 and 1,017.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405.30 : 3,607.86 = 1,017.50 : x
2. Step 2: Convert to fraction form
   2,405.30/3,607.86 = 1,017.50/x
3. Step 3: Cross multiply
   2,405.30x = 3,607.86 × 1,017.50
4. Step 4: Simplify right side
   2,405.30x = 3,670,997.55
5. Step 5: Solve for x
   x = 3,670,997.55/2,405.30
6. Step 6: Final answer
   x = 1,526.21