Finding the Fourth Proportional to 2,345.31, 3,518.01 and 1,357.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.31 : 3,518.01 = 1,357.56 : x
2. Step 2: Convert to fraction form
   2,345.31/3,518.01 = 1,357.56/x
3. Step 3: Cross multiply
   2,345.31x = 3,518.01 × 1,357.56
4. Step 4: Simplify right side
   2,345.31x = 4,775,909.66
5. Step 5: Solve for x
   x = 4,775,909.66/2,345.31
6. Step 6: Final answer
   x = 2,036.37