Finding the Fourth Proportional to 3,613.06, 5,420.31 and 1,304.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,613.06 : 5,420.31 = 1,304.74 : x
2. Step 2: Convert to fraction form
   3,613.06/5,420.31 = 1,304.74/x
3. Step 3: Cross multiply
   3,613.06x = 5,420.31 × 1,304.74
4. Step 4: Simplify right side
   3,613.06x = 7,072,095.27
5. Step 5: Solve for x
   x = 7,072,095.27/3,613.06
6. Step 6: Final answer
   x = 1,957.37