Finding the Fourth Proportional to 1,820.34, 2,512.89 and 1,074.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820.34 : 2,512.89 = 1,074.78 : x
2. Step 2: Convert to fraction form
   1,820.34/2,512.89 = 1,074.78/x
3. Step 3: Cross multiply
   1,820.34x = 2,512.89 × 1,074.78
4. Step 4: Simplify right side
   1,820.34x = 2,700,803.91
5. Step 5: Solve for x
   x = 2,700,803.91/1,820.34
6. Step 6: Final answer
   x = 1,483.68