Finding the Fourth Proportional to 2,045.55, 2,819.56 and 1,382.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045.55 : 2,819.56 = 1,382.16 : x
2. Step 2: Convert to fraction form
   2,045.55/2,819.56 = 1,382.16/x
3. Step 3: Cross multiply
   2,045.55x = 2,819.56 × 1,382.16
4. Step 4: Simplify right side
   2,045.55x = 3,897,092.76
5. Step 5: Solve for x
   x = 3,897,092.76/2,045.55
6. Step 6: Final answer
   x = 1,905.15