Finding the Fourth Proportional to 3,780.18, 5,203.71 and 3,279.87

Step by Step Solution

1. Step 1: Write the proportion equation
   3,780.18 : 5,203.71 = 3,279.87 : x
2. Step 2: Convert to fraction form
   3,780.18/5,203.71 = 3,279.87/x
3. Step 3: Cross multiply
   3,780.18x = 5,203.71 × 3,279.87
4. Step 4: Simplify right side
   3,780.18x = 17,067,492.32
5. Step 5: Solve for x
   x = 17,067,492.32/3,780.18
6. Step 6: Final answer
   x = 4,514.99