Finding the Fourth Proportional to 2,173.98, 3,260.57 and 1,357.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,173.98 : 3,260.57 = 1,357.50 : x
2. Step 2: Convert to fraction form
   2,173.98/3,260.57 = 1,357.50/x
3. Step 3: Cross multiply
   2,173.98x = 3,260.57 × 1,357.50
4. Step 4: Simplify right side
   2,173.98x = 4,426,216.99
5. Step 5: Solve for x
   x = 4,426,216.99/2,173.98
6. Step 6: Final answer
   x = 2,036.00