Finding the Fourth Proportional to 3,128.01, 4,316.59 and 1,730.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,128.01 : 4,316.59 = 1,730.76 : x
2. Step 2: Convert to fraction form
   3,128.01/4,316.59 = 1,730.76/x
3. Step 3: Cross multiply
   3,128.01x = 4,316.59 × 1,730.76
4. Step 4: Simplify right side
   3,128.01x = 7,470,981.31
5. Step 5: Solve for x
   x = 7,470,981.31/3,128.01
6. Step 6: Final answer
   x = 2,388.41