Finding the Fourth Proportional to 2,518.74, 3,778.38 and 875.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518.74 : 3,778.38 = 875.10 : x
2. Step 2: Convert to fraction form
   2,518.74/3,778.38 = 875.10/x
3. Step 3: Cross multiply
   2,518.74x = 3,778.38 × 875.10
4. Step 4: Simplify right side
   2,518.74x = 3,306,460.34
5. Step 5: Solve for x
   x = 3,306,460.34/2,518.74
6. Step 6: Final answer
   x = 1,312.74