Finding the Fourth Proportional to 2,355.32, 3,250.46 and 1,307.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,355.32 : 3,250.46 = 1,307.40 : x
2. Step 2: Convert to fraction form
   2,355.32/3,250.46 = 1,307.40/x
3. Step 3: Cross multiply
   2,355.32x = 3,250.46 × 1,307.40
4. Step 4: Simplify right side
   2,355.32x = 4,249,654.67
5. Step 5: Solve for x
   x = 4,249,654.67/2,355.32
6. Step 6: Final answer
   x = 1,804.28