Finding the Fourth Proportional to 2,357.58, 3,253.71 and 1,309.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,357.58 : 3,253.71 = 1,309.74 : x
2. Step 2: Convert to fraction form
   2,357.58/3,253.71 = 1,309.74/x
3. Step 3: Cross multiply
   2,357.58x = 3,253.71 × 1,309.74
4. Step 4: Simplify right side
   2,357.58x = 4,261,514.14
5. Step 5: Solve for x
   x = 4,261,514.14/2,357.58
6. Step 6: Final answer
   x = 1,807.58