Finding the Fourth Proportional to 1,820.46, 2,512.15 and 1,074.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820.46 : 2,512.15 = 1,074.45 : x
2. Step 2: Convert to fraction form
   1,820.46/2,512.15 = 1,074.45/x
3. Step 3: Cross multiply
   1,820.46x = 2,512.15 × 1,074.45
4. Step 4: Simplify right side
   1,820.46x = 2,699,179.57
5. Step 5: Solve for x
   x = 2,699,179.57/1,820.46
6. Step 6: Final answer
   x = 1,482.69