Finding the Fourth Proportional to 5,152.03, 7,728.01 and 1,256.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,152.03 : 7,728.01 = 1,256.47 : x
2. Step 2: Convert to fraction form
   5,152.03/7,728.01 = 1,256.47/x
3. Step 3: Cross multiply
   5,152.03x = 7,728.01 × 1,256.47
4. Step 4: Simplify right side
   5,152.03x = 9,710,012.72
5. Step 5: Solve for x
   x = 9,710,012.72/5,152.03
6. Step 6: Final answer
   x = 1,884.70