Finding the Fourth Proportional to 2,518.35, 3,770.58 and 1,900.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518.35 : 3,770.58 = 1,900.20 : x
2. Step 2: Convert to fraction form
   2,518.35/3,770.58 = 1,900.20/x
3. Step 3: Cross multiply
   2,518.35x = 3,770.58 × 1,900.20
4. Step 4: Simplify right side
   2,518.35x = 7,164,856.12
5. Step 5: Solve for x
   x = 7,164,856.12/2,518.35
6. Step 6: Final answer
   x = 2,845.06