Finding the Fourth Proportional to 2,320.47, 3,202.30 and 1,272.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,320.47 : 3,202.30 = 1,272.53 : x
2. Step 2: Convert to fraction form
   2,320.47/3,202.30 = 1,272.53/x
3. Step 3: Cross multiply
   2,320.47x = 3,202.30 × 1,272.53
4. Step 4: Simplify right side
   2,320.47x = 4,075,022.82
5. Step 5: Solve for x
   x = 4,075,022.82/2,320.47
6. Step 6: Final answer
   x = 1,756.12