Finding the Fourth Proportional to 1,880.82, 2,817.59 and 1,056.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,880.82 : 2,817.59 = 1,056.58 : x
2. Step 2: Convert to fraction form
   1,880.82/2,817.59 = 1,056.58/x
3. Step 3: Cross multiply
   1,880.82x = 2,817.59 × 1,056.58
4. Step 4: Simplify right side
   1,880.82x = 2,976,996.92
5. Step 5: Solve for x
   x = 2,976,996.92/1,880.82
6. Step 6: Final answer
   x = 1,582.82