Finding the Fourth Proportional to 7,080.42, 10,620.51 and 1,886.58

Step by Step Solution

1. Step 1: Write the proportion equation
   7,080.42 : 10,620.51 = 1,886.58 : x
2. Step 2: Convert to fraction form
   7,080.42/10,620.51 = 1,886.58/x
3. Step 3: Cross multiply
   7,080.42x = 10,620.51 × 1,886.58
4. Step 4: Simplify right side
   7,080.42x = 20,036,441.76
5. Step 5: Solve for x
   x = 20,036,441.76/7,080.42
6. Step 6: Final answer
   x = 2,829.84