Finding the Fourth Proportional to 2,384.48, 3,287.54 and 1,543.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,384.48 : 3,287.54 = 1,543.72 : x
2. Step 2: Convert to fraction form
   2,384.48/3,287.54 = 1,543.72/x
3. Step 3: Cross multiply
   2,384.48x = 3,287.54 × 1,543.72
4. Step 4: Simplify right side
   2,384.48x = 5,075,041.25
5. Step 5: Solve for x
   x = 5,075,041.25/2,384.48
6. Step 6: Final answer
   x = 2,128.36