Finding the Fourth Proportional to 2,613.65, 3,922.29 and 1,152.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.65 : 3,922.29 = 1,152.01 : x
2. Step 2: Convert to fraction form
   2,613.65/3,922.29 = 1,152.01/x
3. Step 3: Cross multiply
   2,613.65x = 3,922.29 × 1,152.01
4. Step 4: Simplify right side
   2,613.65x = 4,518,497.69
5. Step 5: Solve for x
   x = 4,518,497.69/2,613.65
6. Step 6: Final answer
   x = 1,728.81