Finding the Fourth Proportional to 2,355.43, 3,250.61 and 1,307.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,355.43 : 3,250.61 = 1,307.50 : x
2. Step 2: Convert to fraction form
   2,355.43/3,250.61 = 1,307.50/x
3. Step 3: Cross multiply
   2,355.43x = 3,250.61 × 1,307.50
4. Step 4: Simplify right side
   2,355.43x = 4,250,172.58
5. Step 5: Solve for x
   x = 4,250,172.58/2,355.43
6. Step 6: Final answer
   x = 1,804.41