Finding the Fourth Proportional to 2,417.89, 3,336.64 and 1,577.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,417.89 : 3,336.64 = 1,577.00 : x
2. Step 2: Convert to fraction form
   2,417.89/3,336.64 = 1,577.00/x
3. Step 3: Cross multiply
   2,417.89x = 3,336.64 × 1,577.00
4. Step 4: Simplify right side
   2,417.89x = 5,261,860.65
5. Step 5: Solve for x
   x = 5,261,860.65/2,417.89
6. Step 6: Final answer
   x = 2,176.22