Finding the Fourth Proportional to 2,518.79, 3,779.90 and 875.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518.79 : 3,779.90 = 875.32 : x
2. Step 2: Convert to fraction form
   2,518.79/3,779.90 = 875.32/x
3. Step 3: Cross multiply
   2,518.79x = 3,779.90 × 875.32
4. Step 4: Simplify right side
   2,518.79x = 3,308,624.26
5. Step 5: Solve for x
   x = 3,308,624.26/2,518.79
6. Step 6: Final answer
   x = 1,313.58