Finding the Fourth Proportional to 1,815.39, 2,507.58 and 1,501.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,815.39 : 2,507.58 = 1,501.92 : x
2. Step 2: Convert to fraction form
   1,815.39/2,507.58 = 1,501.92/x
3. Step 3: Cross multiply
   1,815.39x = 2,507.58 × 1,501.92
4. Step 4: Simplify right side
   1,815.39x = 3,766,173.27
5. Step 5: Solve for x
   x = 3,766,173.27/1,815.39
6. Step 6: Final answer
   x = 2,074.59