Finding the Fourth Proportional to 3,602.07, 5,424.30 and 3,145.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,602.07 : 5,424.30 = 3,145.32 : x
2. Step 2: Convert to fraction form
   3,602.07/5,424.30 = 3,145.32/x
3. Step 3: Cross multiply
   3,602.07x = 5,424.30 × 3,145.32
4. Step 4: Simplify right side
   3,602.07x = 17,061,159.28
5. Step 5: Solve for x
   x = 17,061,159.28/3,602.07
6. Step 6: Final answer
   x = 4,736.49