Finding the Fourth Proportional to 1,581.84, 2,181.72 and 1,050.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,581.84 : 2,181.72 = 1,050.96 : x
2. Step 2: Convert to fraction form
   1,581.84/2,181.72 = 1,050.96/x
3. Step 3: Cross multiply
   1,581.84x = 2,181.72 × 1,050.96
4. Step 4: Simplify right side
   1,581.84x = 2,292,900.45
5. Step 5: Solve for x
   x = 2,292,900.45/1,581.84
6. Step 6: Final answer
   x = 1,449.51